78780580

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1\times {\mathrm{229}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 168779520

約数和(自身を除く): 89998940

約数列:

[1, 2, 4, 5, 10, 20, 103, 167, 206, 229, 334, 412, 458, 515, 668, 835, 916, 1030, 1145, 1670, 2060, 2290, 3340, 4580, 17201, 23587, 34402, 38243, 47174, 68804, 76486, 86005, 94348, 117935, 152972, 172010, 191215, 235870, 344020, 382430, 471740, 764860, 3939029, 7878058, 15756116, 19695145, 39390290, 78780580]

約数ペア:

[(1, 78780580), (2, 39390290), (4, 19695145), (5, 15756116), (10, 7878058), (20, 3939029), (103, 764860), (167, 471740), (206, 382430), (229, 344020), (334, 235870), (412, 191215), (458, 172010), (515, 152972), (668, 117935), (835, 94348), (916, 86005), (1030, 76486), (1145, 68804), (1670, 47174), (2060, 38243), (2290, 34402), (3340, 23587), (4580, 17201)]