280467580

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1\times {\mathrm{379}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 596776320

約数和(自身を除く): 316308740

約数列:

[1, 2, 4, 5, 10, 20, 163, 227, 326, 379, 454, 652, 758, 815, 908, 1135, 1516, 1630, 1895, 2270, 3260, 3790, 4540, 7580, 37001, 61777, 74002, 86033, 123554, 148004, 172066, 185005, 247108, 308885, 344132, 370010, 430165, 617770, 740020, 860330, 1235540, 1720660, 14023379, 28046758, 56093516, 70116895, 140233790, 280467580]

約数ペア:

[(1, 280467580), (2, 140233790), (4, 70116895), (5, 56093516), (10, 28046758), (20, 14023379), (163, 1720660), (227, 1235540), (326, 860330), (379, 740020), (454, 617770), (652, 430165), (758, 370010), (815, 344132), (908, 308885), (1135, 247108), (1516, 185005), (1630, 172066), (1895, 148004), (2270, 123554), (3260, 86033), (3790, 74002), (4540, 61777), (7580, 37001)]