128580920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:265

約数の個数: 128

約数和(自身を含む): 329797440

約数和(自身を除く): 201216520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 41, 52, 65, 74, 82, 104, 130, 148, 163, 164, 185, 205, 260, 296, 326, 328, 370, 410, 481, 520, 533, 652, 740, 815, 820, 962, 1066, 1304, 1480, 1517, 1630, 1640, 1924, 2119, 2132, 2405, 2665, 3034, 3260, 3848, 4238, 4264, 4810, 5330, 6031, 6068, 6520, 6683, 7585, 8476, 9620, 10595, 10660, 12062, 12136, 13366, 15170, 16952, 19240, 19721, 21190, 21320, 24124, 26732, 30155, 30340, 33415, 39442, 42380, 48248, 53464, 60310, 60680, 66830, 78403, 78884, 84760, 86879, 98605, 120620, 133660, 156806, 157768, 173758, 197210, 241240, 247271, 267320, 313612, 347516, 392015, 394420, 434395, 494542, 627224, 695032, 784030, 788840, 868790, 989084, 1236355, 1568060, 1737580, 1978168, 2472710, 3136120, 3214523, 3475160, 4945420, 6429046, 9890840, 12858092, 16072615, 25716184, 32145230, 64290460, 128580920]

約数ペア:

[(1, 128580920), (2, 64290460), (4, 32145230), (5, 25716184), (8, 16072615), (10, 12858092), (13, 9890840), (20, 6429046), (26, 4945420), (37, 3475160), (40, 3214523), (41, 3136120), (52, 2472710), (65, 1978168), (74, 1737580), (82, 1568060), (104, 1236355), (130, 989084), (148, 868790), (163, 788840), (164, 784030), (185, 695032), (205, 627224), (260, 494542), (296, 434395), (326, 394420), (328, 392015), (370, 347516), (410, 313612), (481, 267320), (520, 247271), (533, 241240), (652, 197210), (740, 173758), (815, 157768), (820, 156806), (962, 133660), (1066, 120620), (1304, 98605), (1480, 86879), (1517, 84760), (1630, 78884), (1640, 78403), (1924, 66830), (2119, 60680), (2132, 60310), (2405, 53464), (2665, 48248), (3034, 42380), (3260, 39442), (3848, 33415), (4238, 30340), (4264, 30155), (4810, 26732), (5330, 24124), (6031, 21320), (6068, 21190), (6520, 19721), (6683, 19240), (7585, 16952), (8476, 15170), (9620, 13366), (10595, 12136), (10660, 12062)]