217426760

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{191}}^2$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 495085500

約数和(自身を除く): 277658740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 191, 298, 382, 596, 745, 764, 955, 1192, 1490, 1528, 1910, 2980, 3820, 5960, 7640, 28459, 36481, 56918, 72962, 113836, 142295, 145924, 182405, 227672, 284590, 291848, 364810, 569180, 729620, 1138360, 1459240, 5435669, 10871338, 21742676, 27178345, 43485352, 54356690, 108713380, 217426760]

約数ペア:

[(1, 217426760), (2, 108713380), (4, 54356690), (5, 43485352), (8, 27178345), (10, 21742676), (20, 10871338), (40, 5435669), (149, 1459240), (191, 1138360), (298, 729620), (382, 569180), (596, 364810), (745, 291848), (764, 284590), (955, 227672), (1192, 182405), (1490, 145924), (1528, 142295), (1910, 113836), (2980, 72962), (3820, 56918), (5960, 36481), (7640, 28459)]