121471980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:628

約数の個数: 144

約数和(自身を含む): 401425920

約数和(自身を除く): 279953940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 79, 84, 98, 105, 140, 147, 158, 196, 210, 237, 245, 294, 316, 395, 420, 474, 490, 523, 553, 588, 735, 790, 948, 980, 1046, 1106, 1185, 1470, 1569, 1580, 1659, 2092, 2212, 2370, 2615, 2765, 2940, 3138, 3318, 3661, 3871, 4740, 5230, 5530, 6276, 6636, 7322, 7742, 7845, 8295, 10460, 10983, 11060, 11613, 14644, 15484, 15690, 16590, 18305, 19355, 21966, 23226, 25627, 31380, 33180, 36610, 38710, 41317, 43932, 46452, 51254, 54915, 58065, 73220, 76881, 77420, 82634, 102508, 109830, 116130, 123951, 128135, 153762, 165268, 206585, 219660, 232260, 247902, 256270, 289219, 307524, 384405, 413170, 495804, 512540, 578438, 619755, 768810, 826340, 867657, 1156876, 1239510, 1446095, 1537620, 1735314, 2024533, 2479020, 2892190, 3470628, 4049066, 4338285, 5784380, 6073599, 8098132, 8676570, 10122665, 12147198, 17353140, 20245330, 24294396, 30367995, 40490660, 60735990, 121471980]

約数ペア:

[(1, 121471980), (2, 60735990), (3, 40490660), (4, 30367995), (5, 24294396), (6, 20245330), (7, 17353140), (10, 12147198), (12, 10122665), (14, 8676570), (15, 8098132), (20, 6073599), (21, 5784380), (28, 4338285), (30, 4049066), (35, 3470628), (42, 2892190), (49, 2479020), (60, 2024533), (70, 1735314), (79, 1537620), (84, 1446095), (98, 1239510), (105, 1156876), (140, 867657), (147, 826340), (158, 768810), (196, 619755), (210, 578438), (237, 512540), (245, 495804), (294, 413170), (316, 384405), (395, 307524), (420, 289219), (474, 256270), (490, 247902), (523, 232260), (553, 219660), (588, 206585), (735, 165268), (790, 153762), (948, 128135), (980, 123951), (1046, 116130), (1106, 109830), (1185, 102508), (1470, 82634), (1569, 77420), (1580, 76881), (1659, 73220), (2092, 58065), (2212, 54915), (2370, 51254), (2615, 46452), (2765, 43932), (2940, 41317), (3138, 38710), (3318, 36610), (3661, 33180), (3871, 31380), (4740, 25627), (5230, 23226), (5530, 21966), (6276, 19355), (6636, 18305), (7322, 16590), (7742, 15690), (7845, 15484), (8295, 14644), (10460, 11613), (10983, 11060)]