20172808680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1\times {\mathrm{3109}}^1$

素因数の和:3651

約数の個数: 128

約数和(自身を含む): 61130160000

約数和(自身を除く): 40957351320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 389, 417, 556, 695, 778, 834, 1112, 1167, 1390, 1556, 1668, 1945, 2085, 2334, 2780, 3109, 3112, 3336, 3890, 4170, 4668, 5560, 5835, 6218, 7780, 8340, 9327, 9336, 11670, 12436, 15545, 15560, 16680, 18654, 23340, 24872, 31090, 37308, 46635, 46680, 54071, 62180, 74616, 93270, 108142, 124360, 162213, 186540, 216284, 270355, 324426, 373080, 432151, 432568, 540710, 648852, 811065, 864302, 1081420, 1209401, 1296453, 1297704, 1622130, 1728604, 2160755, 2162840, 2418802, 2592906, 3244260, 3457208, 3628203, 4321510, 4837604, 5185812, 6047005, 6482265, 6488520, 7256406, 8643020, 9675208, 10371624, 12094010, 12964530, 14512812, 17286040, 18141015, 24188020, 25929060, 29025624, 36282030, 48376040, 51858120, 72564060, 145128120, 168106739, 336213478, 504320217, 672426956, 840533695, 1008640434, 1344853912, 1681067390, 2017280868, 2521601085, 3362134780, 4034561736, 5043202170, 6724269560, 10086404340, 20172808680]

約数ペア:

[(1, 20172808680), (2, 10086404340), (3, 6724269560), (4, 5043202170), (5, 4034561736), (6, 3362134780), (8, 2521601085), (10, 2017280868), (12, 1681067390), (15, 1344853912), (20, 1008640434), (24, 840533695), (30, 672426956), (40, 504320217), (60, 336213478), (120, 168106739), (139, 145128120), (278, 72564060), (389, 51858120), (417, 48376040), (556, 36282030), (695, 29025624), (778, 25929060), (834, 24188020), (1112, 18141015), (1167, 17286040), (1390, 14512812), (1556, 12964530), (1668, 12094010), (1945, 10371624), (2085, 9675208), (2334, 8643020), (2780, 7256406), (3109, 6488520), (3112, 6482265), (3336, 6047005), (3890, 5185812), (4170, 4837604), (4668, 4321510), (5560, 3628203), (5835, 3457208), (6218, 3244260), (7780, 2592906), (8340, 2418802), (9327, 2162840), (9336, 2160755), (11670, 1728604), (12436, 1622130), (15545, 1297704), (15560, 1296453), (16680, 1209401), (18654, 1081420), (23340, 864302), (24872, 811065), (31090, 648852), (37308, 540710), (46635, 432568), (46680, 432151), (54071, 373080), (62180, 324426), (74616, 270355), (93270, 216284), (108142, 186540), (124360, 162213)]