257156743660

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{154913701}}^1$

素因数の和:154913793

約数の個数: 24

約数和(自身を含む): 546535540656

約数和(自身を除く): 289378796996

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 154913701, 309827402, 619654804, 774568505, 1549137010, 3098274020, 12857837183, 25715674366, 51431348732, 64289185915, 128578371830, 257156743660]

約数ペア:

[(1, 257156743660), (2, 128578371830), (4, 64289185915), (5, 51431348732), (10, 25715674366), (20, 12857837183), (83, 3098274020), (166, 1549137010), (332, 774568505), (415, 619654804), (830, 309827402), (1660, 154913701)]