2720737320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{641}}^1$

素因数の和:856

約数の個数: 256

約数和(自身を含む): 9703342080

約数和(自身を除く): 6982604760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 163, 168, 186, 210, 217, 248, 280, 310, 326, 372, 420, 434, 465, 489, 620, 641, 651, 652, 744, 815, 840, 868, 930, 978, 1085, 1141, 1240, 1282, 1302, 1304, 1630, 1736, 1860, 1923, 1956, 2170, 2282, 2445, 2564, 2604, 3205, 3255, 3260, 3423, 3720, 3846, 3912, 4340, 4487, 4564, 4890, 5053, 5128, 5208, 5705, 6410, 6510, 6520, 6846, 7692, 8680, 8974, 9128, 9615, 9780, 10106, 11410, 12820, 13020, 13461, 13692, 15159, 15384, 17115, 17948, 19230, 19560, 19871, 20212, 22435, 22820, 25265, 25640, 26040, 26922, 27384, 30318, 34230, 35371, 35896, 38460, 39742, 40424, 44870, 45640, 50530, 53844, 59613, 60636, 67305, 68460, 70742, 75795, 76920, 79484, 89740, 99355, 101060, 104483, 106113, 107688, 119226, 121272, 134610, 136920, 139097, 141484, 151590, 158968, 176855, 179480, 198710, 202120, 208966, 212226, 238452, 269220, 278194, 282968, 298065, 303180, 313449, 353710, 397420, 417291, 417932, 424452, 476904, 522415, 530565, 538440, 556388, 596130, 606360, 626898, 695485, 707420, 731381, 794840, 834582, 835864, 848904, 1044830, 1061130, 1112776, 1192260, 1253796, 1390970, 1414840, 1462762, 1567245, 1669164, 2086455, 2089660, 2122260, 2194143, 2384520, 2507592, 2781940, 2925524, 3134490, 3238973, 3338328, 3656905, 4172910, 4179320, 4244520, 4388286, 5563880, 5851048, 6268980, 6477946, 7313810, 8345820, 8776572, 9716919, 10970715, 12537960, 12955892, 14627620, 16194865, 16691640, 17553144, 19433838, 21941430, 22672811, 25911784, 29255240, 32389730, 38867676, 43882860, 45345622, 48584595, 64779460, 68018433, 77735352, 87765720, 90691244, 97169190, 113364055, 129558920, 136036866, 181382488, 194338380, 226728110, 272073732, 340092165, 388676760, 453456220, 544147464, 680184330, 906912440, 1360368660, 2720737320]

約数ペア:

[(1, 2720737320), (2, 1360368660), (3, 906912440), (4, 680184330), (5, 544147464), (6, 453456220), (7, 388676760), (8, 340092165), (10, 272073732), (12, 226728110), (14, 194338380), (15, 181382488), (20, 136036866), (21, 129558920), (24, 113364055), (28, 97169190), (30, 90691244), (31, 87765720), (35, 77735352), (40, 68018433), (42, 64779460), (56, 48584595), (60, 45345622), (62, 43882860), (70, 38867676), (84, 32389730), (93, 29255240), (105, 25911784), (120, 22672811), (124, 21941430), (140, 19433838), (155, 17553144), (163, 16691640), (168, 16194865), (186, 14627620), (210, 12955892), (217, 12537960), (248, 10970715), (280, 9716919), (310, 8776572), (326, 8345820), (372, 7313810), (420, 6477946), (434, 6268980), (465, 5851048), (489, 5563880), (620, 4388286), (641, 4244520), (651, 4179320), (652, 4172910), (744, 3656905), (815, 3338328), (840, 3238973), (868, 3134490), (930, 2925524), (978, 2781940), (1085, 2507592), (1141, 2384520), (1240, 2194143), (1282, 2122260), (1302, 2089660), (1304, 2086455), (1630, 1669164), (1736, 1567245), (1860, 1462762), (1923, 1414840), (1956, 1390970), (2170, 1253796), (2282, 1192260), (2445, 1112776), (2564, 1061130), (2604, 1044830), (3205, 848904), (3255, 835864), (3260, 834582), (3423, 794840), (3720, 731381), (3846, 707420), (3912, 695485), (4340, 626898), (4487, 606360), (4564, 596130), (4890, 556388), (5053, 538440), (5128, 530565), (5208, 522415), (5705, 476904), (6410, 424452), (6510, 417932), (6520, 417291), (6846, 397420), (7692, 353710), (8680, 313449), (8974, 303180), (9128, 298065), (9615, 282968), (9780, 278194), (10106, 269220), (11410, 238452), (12820, 212226), (13020, 208966), (13461, 202120), (13692, 198710), (15159, 179480), (15384, 176855), (17115, 158968), (17948, 151590), (19230, 141484), (19560, 139097), (19871, 136920), (20212, 134610), (22435, 121272), (22820, 119226), (25265, 107688), (25640, 106113), (26040, 104483), (26922, 101060), (27384, 99355), (30318, 89740), (34230, 79484), (35371, 76920), (35896, 75795), (38460, 70742), (39742, 68460), (40424, 67305), (44870, 60636), (45640, 59613), (50530, 53844)]