2171240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:162

約数の個数: 64

約数和(自身を含む): 5391360

約数和(自身を除く): 3220120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 103, 124, 136, 155, 170, 206, 248, 310, 340, 412, 515, 527, 620, 680, 824, 1030, 1054, 1240, 1751, 2060, 2108, 2635, 3193, 3502, 4120, 4216, 5270, 6386, 7004, 8755, 10540, 12772, 14008, 15965, 17510, 21080, 25544, 31930, 35020, 54281, 63860, 70040, 108562, 127720, 217124, 271405, 434248, 542810, 1085620, 2171240]

約数ペア:

[(1, 2171240), (2, 1085620), (4, 542810), (5, 434248), (8, 271405), (10, 217124), (17, 127720), (20, 108562), (31, 70040), (34, 63860), (40, 54281), (62, 35020), (68, 31930), (85, 25544), (103, 21080), (124, 17510), (136, 15965), (155, 14008), (170, 12772), (206, 10540), (248, 8755), (310, 7004), (340, 6386), (412, 5270), (515, 4216), (527, 4120), (620, 3502), (680, 3193), (824, 2635), (1030, 2108), (1054, 2060), (1240, 1751)]