20371680

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:118

約数の個数: 288

約数和(自身を含む): 83026944

約数和(自身を除く): 62655264

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 43, 45, 47, 48, 56, 60, 63, 70, 72, 80, 84, 86, 90, 94, 96, 105, 112, 120, 126, 129, 140, 141, 144, 160, 168, 172, 180, 188, 210, 215, 224, 235, 240, 252, 258, 280, 282, 288, 301, 315, 329, 336, 344, 360, 376, 387, 420, 423, 430, 470, 480, 504, 516, 560, 564, 602, 630, 645, 658, 672, 688, 705, 720, 752, 774, 840, 846, 860, 903, 940, 987, 1008, 1032, 1120, 1128, 1204, 1260, 1290, 1316, 1376, 1410, 1440, 1504, 1505, 1548, 1645, 1680, 1692, 1720, 1806, 1880, 1935, 1974, 2016, 2021, 2064, 2115, 2256, 2408, 2520, 2580, 2632, 2709, 2820, 2961, 3010, 3096, 3290, 3360, 3384, 3440, 3612, 3760, 3870, 3948, 4042, 4128, 4230, 4512, 4515, 4816, 4935, 5040, 5160, 5264, 5418, 5640, 5922, 6020, 6063, 6192, 6580, 6768, 6880, 7224, 7520, 7740, 7896, 8084, 8460, 9030, 9632, 9870, 10080, 10105, 10320, 10528, 10836, 11280, 11844, 12040, 12126, 12384, 13160, 13536, 13545, 14147, 14448, 14805, 15480, 15792, 16168, 16920, 18060, 18189, 19740, 20210, 20640, 21672, 22560, 23688, 24080, 24252, 26320, 27090, 28294, 28896, 29610, 30315, 30960, 31584, 32336, 33840, 36120, 36378, 39480, 40420, 42441, 43344, 47376, 48160, 48504, 52640, 54180, 56588, 59220, 60630, 61920, 64672, 67680, 70735, 72240, 72756, 78960, 80840, 84882, 86688, 90945, 94752, 97008, 108360, 113176, 118440, 121260, 127323, 141470, 144480, 145512, 157920, 161680, 169764, 181890, 194016, 212205, 216720, 226352, 236880, 242520, 254646, 282940, 291024, 323360, 339528, 363780, 424410, 433440, 452704, 473760, 485040, 509292, 565880, 582048, 636615, 679056, 727560, 848820, 970080, 1018584, 1131760, 1273230, 1358112, 1455120, 1697640, 2037168, 2263520, 2546460, 2910240, 3395280, 4074336, 5092920, 6790560, 10185840, 20371680]

約数ペア:

[(1, 20371680), (2, 10185840), (3, 6790560), (4, 5092920), (5, 4074336), (6, 3395280), (7, 2910240), (8, 2546460), (9, 2263520), (10, 2037168), (12, 1697640), (14, 1455120), (15, 1358112), (16, 1273230), (18, 1131760), (20, 1018584), (21, 970080), (24, 848820), (28, 727560), (30, 679056), (32, 636615), (35, 582048), (36, 565880), (40, 509292), (42, 485040), (43, 473760), (45, 452704), (47, 433440), (48, 424410), (56, 363780), (60, 339528), (63, 323360), (70, 291024), (72, 282940), (80, 254646), (84, 242520), (86, 236880), (90, 226352), (94, 216720), (96, 212205), (105, 194016), (112, 181890), (120, 169764), (126, 161680), (129, 157920), (140, 145512), (141, 144480), (144, 141470), (160, 127323), (168, 121260), (172, 118440), (180, 113176), (188, 108360), (210, 97008), (215, 94752), (224, 90945), (235, 86688), (240, 84882), (252, 80840), (258, 78960), (280, 72756), (282, 72240), (288, 70735), (301, 67680), (315, 64672), (329, 61920), (336, 60630), (344, 59220), (360, 56588), (376, 54180), (387, 52640), (420, 48504), (423, 48160), (430, 47376), (470, 43344), (480, 42441), (504, 40420), (516, 39480), (560, 36378), (564, 36120), (602, 33840), (630, 32336), (645, 31584), (658, 30960), (672, 30315), (688, 29610), (705, 28896), (720, 28294), (752, 27090), (774, 26320), (840, 24252), (846, 24080), (860, 23688), (903, 22560), (940, 21672), (987, 20640), (1008, 20210), (1032, 19740), (1120, 18189), (1128, 18060), (1204, 16920), (1260, 16168), (1290, 15792), (1316, 15480), (1376, 14805), (1410, 14448), (1440, 14147), (1504, 13545), (1505, 13536), (1548, 13160), (1645, 12384), (1680, 12126), (1692, 12040), (1720, 11844), (1806, 11280), (1880, 10836), (1935, 10528), (1974, 10320), (2016, 10105), (2021, 10080), (2064, 9870), (2115, 9632), (2256, 9030), (2408, 8460), (2520, 8084), (2580, 7896), (2632, 7740), (2709, 7520), (2820, 7224), (2961, 6880), (3010, 6768), (3096, 6580), (3290, 6192), (3360, 6063), (3384, 6020), (3440, 5922), (3612, 5640), (3760, 5418), (3870, 5264), (3948, 5160), (4042, 5040), (4128, 4935), (4230, 4816), (4512, 4515)]