217149920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{104399}}^1$

素因数の和:104427

約数の個数: 48

約数和(自身を含む): 552484800

約数和(自身を除く): 335334880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 104399, 208798, 417596, 521995, 835192, 1043990, 1357187, 1670384, 2087980, 2714374, 3340768, 4175960, 5428748, 6785935, 8351920, 10857496, 13571870, 16703840, 21714992, 27143740, 43429984, 54287480, 108574960, 217149920]

約数ペア:

[(1, 217149920), (2, 108574960), (4, 54287480), (5, 43429984), (8, 27143740), (10, 21714992), (13, 16703840), (16, 13571870), (20, 10857496), (26, 8351920), (32, 6785935), (40, 5428748), (52, 4175960), (65, 3340768), (80, 2714374), (104, 2087980), (130, 1670384), (160, 1357187), (208, 1043990), (260, 835192), (416, 521995), (520, 417596), (1040, 208798), (2080, 104399)]