619840

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1$

素因数の和:179

約数の個数: 56

約数和(自身を含む): 1600200

約数和(自身を除く): 980360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 149, 160, 208, 260, 298, 320, 416, 520, 596, 745, 832, 1040, 1192, 1490, 1937, 2080, 2384, 2980, 3874, 4160, 4768, 5960, 7748, 9536, 9685, 11920, 15496, 19370, 23840, 30992, 38740, 47680, 61984, 77480, 123968, 154960, 309920, 619840]

約数ペア:

[(1, 619840), (2, 309920), (4, 154960), (5, 123968), (8, 77480), (10, 61984), (13, 47680), (16, 38740), (20, 30992), (26, 23840), (32, 19370), (40, 15496), (52, 11920), (64, 9685), (65, 9536), (80, 7748), (104, 5960), (130, 4768), (149, 4160), (160, 3874), (208, 2980), (260, 2384), (298, 2080), (320, 1937), (416, 1490), (520, 1192), (596, 1040), (745, 832)]