289089980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{8171}}^1$

素因数の和:8270

約数の個数: 48

約数和(自身を含む): 638396640

約数和(自身を除く): 349306660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 244, 290, 305, 580, 610, 1220, 1769, 3538, 7076, 8171, 8845, 16342, 17690, 32684, 35380, 40855, 81710, 163420, 236959, 473918, 498431, 947836, 996862, 1184795, 1993724, 2369590, 2492155, 4739180, 4984310, 9968620, 14454499, 28908998, 57817996, 72272495, 144544990, 289089980]

約数ペア:

[(1, 289089980), (2, 144544990), (4, 72272495), (5, 57817996), (10, 28908998), (20, 14454499), (29, 9968620), (58, 4984310), (61, 4739180), (116, 2492155), (122, 2369590), (145, 1993724), (244, 1184795), (290, 996862), (305, 947836), (580, 498431), (610, 473918), (1220, 236959), (1769, 163420), (3538, 81710), (7076, 40855), (8171, 35380), (8845, 32684), (16342, 17690)]