18473980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2693}}^1$

素因数の和:2723

約数の個数: 48

約数和(自身を含む): 45259200

約数和(自身を除く): 26785220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2693, 3430, 5386, 6860, 10772, 13465, 18851, 26930, 37702, 53860, 75404, 94255, 131957, 188510, 263914, 377020, 527828, 659785, 923699, 1319570, 1847398, 2639140, 3694796, 4618495, 9236990, 18473980]

約数ペア:

[(1, 18473980), (2, 9236990), (4, 4618495), (5, 3694796), (7, 2639140), (10, 1847398), (14, 1319570), (20, 923699), (28, 659785), (35, 527828), (49, 377020), (70, 263914), (98, 188510), (140, 131957), (196, 94255), (245, 75404), (343, 53860), (490, 37702), (686, 26930), (980, 18851), (1372, 13465), (1715, 10772), (2693, 6860), (3430, 5386)]