987642020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{33893}}^1$

素因数の和:33980

約数の個数: 48

約数和(自身を含む): 2186569728

約数和(自身を除く): 1198927708

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 155, 188, 235, 310, 470, 620, 940, 1457, 2914, 5828, 7285, 14570, 29140, 33893, 67786, 135572, 169465, 338930, 677860, 1050683, 1592971, 2101366, 3185942, 4202732, 5253415, 6371884, 7964855, 10506830, 15929710, 21013660, 31859420, 49382101, 98764202, 197528404, 246910505, 493821010, 987642020]

約数ペア:

[(1, 987642020), (2, 493821010), (4, 246910505), (5, 197528404), (10, 98764202), (20, 49382101), (31, 31859420), (47, 21013660), (62, 15929710), (94, 10506830), (124, 7964855), (155, 6371884), (188, 5253415), (235, 4202732), (310, 3185942), (470, 2101366), (620, 1592971), (940, 1050683), (1457, 677860), (2914, 338930), (5828, 169465), (7285, 135572), (14570, 67786), (29140, 33893)]