251921640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123491}}^1$

素因数の和:123522

約数の個数: 64

約数和(自身を含む): 800228160

約数和(自身を除く): 548306520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 123491, 246982, 370473, 493964, 617455, 740946, 987928, 1234910, 1481892, 1852365, 2099347, 2469820, 2963784, 3704730, 4198694, 4939640, 6298041, 7409460, 8397388, 10496735, 12596082, 14818920, 16794776, 20993470, 25192164, 31490205, 41986940, 50384328, 62980410, 83973880, 125960820, 251921640]

約数ペア:

[(1, 251921640), (2, 125960820), (3, 83973880), (4, 62980410), (5, 50384328), (6, 41986940), (8, 31490205), (10, 25192164), (12, 20993470), (15, 16794776), (17, 14818920), (20, 12596082), (24, 10496735), (30, 8397388), (34, 7409460), (40, 6298041), (51, 4939640), (60, 4198694), (68, 3704730), (85, 2963784), (102, 2469820), (120, 2099347), (136, 1852365), (170, 1481892), (204, 1234910), (255, 987928), (340, 740946), (408, 617455), (510, 493964), (680, 370473), (1020, 246982), (2040, 123491)]