399480848

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{157}}^1\times {\mathrm{941}}^1$

素因数の和:1132

約数の個数: 60

約数和(自身を含む): 844346628

約数和(自身を除く): 444865780

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 157, 169, 208, 314, 338, 628, 676, 941, 1256, 1352, 1882, 2041, 2512, 2704, 3764, 4082, 7528, 8164, 12233, 15056, 16328, 24466, 26533, 32656, 48932, 53066, 97864, 106132, 147737, 159029, 195728, 212264, 295474, 318058, 424528, 590948, 636116, 1181896, 1272232, 1920581, 2363792, 2544464, 3841162, 7682324, 15364648, 24967553, 30729296, 49935106, 99870212, 199740424, 399480848]

約数ペア:

[(1, 399480848), (2, 199740424), (4, 99870212), (8, 49935106), (13, 30729296), (16, 24967553), (26, 15364648), (52, 7682324), (104, 3841162), (157, 2544464), (169, 2363792), (208, 1920581), (314, 1272232), (338, 1181896), (628, 636116), (676, 590948), (941, 424528), (1256, 318058), (1352, 295474), (1882, 212264), (2041, 195728), (2512, 159029), (2704, 147737), (3764, 106132), (4082, 97864), (7528, 53066), (8164, 48932), (12233, 32656), (15056, 26533), (16328, 24466)]