211065640

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{19471}}^1$

素因数の和:19753

約数の個数: 32

約数和(自身を含む): 476674560

約数和(自身を除く): 265608920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 10840, 19471, 38942, 77884, 97355, 155768, 194710, 389420, 778840, 5276641, 10553282, 21106564, 26383205, 42213128, 52766410, 105532820, 211065640]

約数ペア:

[(1, 211065640), (2, 105532820), (4, 52766410), (5, 42213128), (8, 26383205), (10, 21106564), (20, 10553282), (40, 5276641), (271, 778840), (542, 389420), (1084, 194710), (1355, 155768), (2168, 97355), (2710, 77884), (5420, 38942), (10840, 19471)]