208519688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1999}}^1$

素因数の和:2094

約数の個数: 64

約数和(自身を含む): 453600000

約数和(自身を除く): 245080312

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 59, 68, 104, 118, 136, 221, 236, 442, 472, 767, 884, 1003, 1534, 1768, 1999, 2006, 3068, 3998, 4012, 6136, 7996, 8024, 13039, 15992, 25987, 26078, 33983, 51974, 52156, 67966, 103948, 104312, 117941, 135932, 207896, 235882, 271864, 441779, 471764, 883558, 943528, 1533233, 1767116, 2004997, 3066466, 3534232, 4009994, 6132932, 8019988, 12265864, 16039976, 26064961, 52129922, 104259844, 208519688]

約数ペア:

[(1, 208519688), (2, 104259844), (4, 52129922), (8, 26064961), (13, 16039976), (17, 12265864), (26, 8019988), (34, 6132932), (52, 4009994), (59, 3534232), (68, 3066466), (104, 2004997), (118, 1767116), (136, 1533233), (221, 943528), (236, 883558), (442, 471764), (472, 441779), (767, 271864), (884, 235882), (1003, 207896), (1534, 135932), (1768, 117941), (1999, 104312), (2006, 103948), (3068, 67966), (3998, 52156), (4012, 51974), (6136, 33983), (7996, 26078), (8024, 25987), (13039, 15992)]