81921450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{977}}^1$

素因数の和:1048

約数の個数: 96

約数和(自身を含む): 224110656

約数和(自身を除く): 142189206

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 43, 50, 65, 75, 78, 86, 129, 130, 150, 195, 215, 258, 325, 390, 430, 559, 645, 650, 975, 977, 1075, 1118, 1290, 1677, 1950, 1954, 2150, 2795, 2931, 3225, 3354, 4885, 5590, 5862, 6450, 8385, 9770, 12701, 13975, 14655, 16770, 24425, 25402, 27950, 29310, 38103, 41925, 42011, 48850, 63505, 73275, 76206, 83850, 84022, 126033, 127010, 146550, 190515, 210055, 252066, 317525, 381030, 420110, 546143, 630165, 635050, 952575, 1050275, 1092286, 1260330, 1638429, 1905150, 2100550, 2730715, 3150825, 3276858, 5461430, 6301650, 8192145, 13653575, 16384290, 27307150, 40960725, 81921450]

約数ペア:

[(1, 81921450), (2, 40960725), (3, 27307150), (5, 16384290), (6, 13653575), (10, 8192145), (13, 6301650), (15, 5461430), (25, 3276858), (26, 3150825), (30, 2730715), (39, 2100550), (43, 1905150), (50, 1638429), (65, 1260330), (75, 1092286), (78, 1050275), (86, 952575), (129, 635050), (130, 630165), (150, 546143), (195, 420110), (215, 381030), (258, 317525), (325, 252066), (390, 210055), (430, 190515), (559, 146550), (645, 127010), (650, 126033), (975, 84022), (977, 83850), (1075, 76206), (1118, 73275), (1290, 63505), (1677, 48850), (1950, 42011), (1954, 41925), (2150, 38103), (2795, 29310), (2931, 27950), (3225, 25402), (3354, 24425), (4885, 16770), (5590, 14655), (5862, 13975), (6450, 12701), (8385, 9770)]