289311740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1\times {\mathrm{953}}^1$

素因数の和:1358

約数の個数: 48

約数和(自身を含む): 624099168

約数和(自身を除く): 334787428

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 353, 430, 706, 860, 953, 1412, 1765, 1906, 3530, 3812, 4765, 7060, 9530, 15179, 19060, 30358, 40979, 60716, 75895, 81958, 151790, 163916, 204895, 303580, 336409, 409790, 672818, 819580, 1345636, 1682045, 3364090, 6728180, 14465587, 28931174, 57862348, 72327935, 144655870, 289311740]

約数ペア:

[(1, 289311740), (2, 144655870), (4, 72327935), (5, 57862348), (10, 28931174), (20, 14465587), (43, 6728180), (86, 3364090), (172, 1682045), (215, 1345636), (353, 819580), (430, 672818), (706, 409790), (860, 336409), (953, 303580), (1412, 204895), (1765, 163916), (1906, 151790), (3530, 81958), (3812, 75895), (4765, 60716), (7060, 40979), (9530, 30358), (15179, 19060)]