620789880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{1531}}^1$

素因数の和:1685

約数の個数: 128

約数和(自身を含む): 1941350400

約数和(自身を除く): 1320560520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 109, 120, 124, 155, 186, 218, 248, 310, 327, 372, 436, 465, 545, 620, 654, 744, 872, 930, 1090, 1240, 1308, 1531, 1635, 1860, 2180, 2616, 3062, 3270, 3379, 3720, 4360, 4593, 6124, 6540, 6758, 7655, 9186, 10137, 12248, 13080, 13516, 15310, 16895, 18372, 20274, 22965, 27032, 30620, 33790, 36744, 40548, 45930, 47461, 50685, 61240, 67580, 81096, 91860, 94922, 101370, 135160, 142383, 166879, 183720, 189844, 202740, 237305, 284766, 333758, 379688, 405480, 474610, 500637, 569532, 667516, 711915, 834395, 949220, 1001274, 1139064, 1335032, 1423830, 1668790, 1898440, 2002548, 2503185, 2847660, 3337580, 4005096, 5006370, 5173249, 5695320, 6675160, 10012740, 10346498, 15519747, 20025480, 20692996, 25866245, 31039494, 41385992, 51732490, 62078988, 77598735, 103464980, 124157976, 155197470, 206929960, 310394940, 620789880]

約数ペア:

[(1, 620789880), (2, 310394940), (3, 206929960), (4, 155197470), (5, 124157976), (6, 103464980), (8, 77598735), (10, 62078988), (12, 51732490), (15, 41385992), (20, 31039494), (24, 25866245), (30, 20692996), (31, 20025480), (40, 15519747), (60, 10346498), (62, 10012740), (93, 6675160), (109, 5695320), (120, 5173249), (124, 5006370), (155, 4005096), (186, 3337580), (218, 2847660), (248, 2503185), (310, 2002548), (327, 1898440), (372, 1668790), (436, 1423830), (465, 1335032), (545, 1139064), (620, 1001274), (654, 949220), (744, 834395), (872, 711915), (930, 667516), (1090, 569532), (1240, 500637), (1308, 474610), (1531, 405480), (1635, 379688), (1860, 333758), (2180, 284766), (2616, 237305), (3062, 202740), (3270, 189844), (3379, 183720), (3720, 166879), (4360, 142383), (4593, 135160), (6124, 101370), (6540, 94922), (6758, 91860), (7655, 81096), (9186, 67580), (10137, 61240), (12248, 50685), (13080, 47461), (13516, 45930), (15310, 40548), (16895, 36744), (18372, 33790), (20274, 30620), (22965, 27032)]