20009880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:222

約数の個数: 192

約数和(自身を含む): 73681920

約数和(自身を除く): 53672040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 31, 33, 36, 40, 44, 45, 55, 60, 62, 66, 72, 88, 90, 93, 99, 110, 120, 124, 132, 155, 163, 165, 180, 186, 198, 220, 248, 264, 279, 310, 326, 330, 341, 360, 372, 396, 440, 465, 489, 495, 558, 620, 652, 660, 682, 744, 792, 815, 930, 978, 990, 1023, 1116, 1240, 1304, 1320, 1364, 1395, 1467, 1630, 1705, 1793, 1860, 1956, 1980, 2046, 2232, 2445, 2728, 2790, 2934, 3069, 3260, 3410, 3586, 3720, 3912, 3960, 4092, 4890, 5053, 5115, 5379, 5580, 5868, 6138, 6520, 6820, 7172, 7335, 8184, 8965, 9780, 10106, 10230, 10758, 11160, 11736, 12276, 13640, 14344, 14670, 15159, 15345, 16137, 17930, 19560, 20212, 20460, 21516, 24552, 25265, 26895, 29340, 30318, 30690, 32274, 35860, 40424, 40920, 43032, 45477, 50530, 53790, 55583, 58680, 60636, 61380, 64548, 71720, 75795, 80685, 90954, 101060, 107580, 111166, 121272, 122760, 129096, 151590, 161370, 166749, 181908, 202120, 215160, 222332, 227385, 277915, 303180, 322740, 333498, 363816, 444664, 454770, 500247, 555830, 606360, 645480, 666996, 833745, 909540, 1000494, 1111660, 1333992, 1667490, 1819080, 2000988, 2223320, 2501235, 3334980, 4001976, 5002470, 6669960, 10004940, 20009880]

約数ペア:

[(1, 20009880), (2, 10004940), (3, 6669960), (4, 5002470), (5, 4001976), (6, 3334980), (8, 2501235), (9, 2223320), (10, 2000988), (11, 1819080), (12, 1667490), (15, 1333992), (18, 1111660), (20, 1000494), (22, 909540), (24, 833745), (30, 666996), (31, 645480), (33, 606360), (36, 555830), (40, 500247), (44, 454770), (45, 444664), (55, 363816), (60, 333498), (62, 322740), (66, 303180), (72, 277915), (88, 227385), (90, 222332), (93, 215160), (99, 202120), (110, 181908), (120, 166749), (124, 161370), (132, 151590), (155, 129096), (163, 122760), (165, 121272), (180, 111166), (186, 107580), (198, 101060), (220, 90954), (248, 80685), (264, 75795), (279, 71720), (310, 64548), (326, 61380), (330, 60636), (341, 58680), (360, 55583), (372, 53790), (396, 50530), (440, 45477), (465, 43032), (489, 40920), (495, 40424), (558, 35860), (620, 32274), (652, 30690), (660, 30318), (682, 29340), (744, 26895), (792, 25265), (815, 24552), (930, 21516), (978, 20460), (990, 20212), (1023, 19560), (1116, 17930), (1240, 16137), (1304, 15345), (1320, 15159), (1364, 14670), (1395, 14344), (1467, 13640), (1630, 12276), (1705, 11736), (1793, 11160), (1860, 10758), (1956, 10230), (1980, 10106), (2046, 9780), (2232, 8965), (2445, 8184), (2728, 7335), (2790, 7172), (2934, 6820), (3069, 6520), (3260, 6138), (3410, 5868), (3586, 5580), (3720, 5379), (3912, 5115), (3960, 5053), (4092, 4890)]