28095560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 67910400

約数和(自身を除く): 39814840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 79, 85, 136, 158, 170, 316, 340, 395, 523, 632, 680, 790, 1046, 1343, 1580, 2092, 2615, 2686, 3160, 4184, 5230, 5372, 6715, 8891, 10460, 10744, 13430, 17782, 20920, 26860, 35564, 41317, 44455, 53720, 71128, 82634, 88910, 165268, 177820, 206585, 330536, 355640, 413170, 702389, 826340, 1404778, 1652680, 2809556, 3511945, 5619112, 7023890, 14047780, 28095560]

約数ペア:

[(1, 28095560), (2, 14047780), (4, 7023890), (5, 5619112), (8, 3511945), (10, 2809556), (17, 1652680), (20, 1404778), (34, 826340), (40, 702389), (68, 413170), (79, 355640), (85, 330536), (136, 206585), (158, 177820), (170, 165268), (316, 88910), (340, 82634), (395, 71128), (523, 53720), (632, 44455), (680, 41317), (790, 35564), (1046, 26860), (1343, 20920), (1580, 17782), (2092, 13430), (2615, 10744), (2686, 10460), (3160, 8891), (4184, 6715), (5230, 5372)]