81343530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21019}}^1$

素因数の和:21075

約数の個数: 48

約数和(自身を含む): 216421920

約数和(自身を除く): 135078390

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 21019, 42038, 63057, 105095, 126114, 189171, 210190, 315285, 378342, 630570, 903817, 945855, 1807634, 1891710, 2711451, 4519085, 5422902, 8134353, 9038170, 13557255, 16268706, 27114510, 40671765, 81343530]

約数ペア:

[(1, 81343530), (2, 40671765), (3, 27114510), (5, 16268706), (6, 13557255), (9, 9038170), (10, 8134353), (15, 5422902), (18, 4519085), (30, 2711451), (43, 1891710), (45, 1807634), (86, 945855), (90, 903817), (129, 630570), (215, 378342), (258, 315285), (387, 210190), (430, 189171), (645, 126114), (774, 105095), (1290, 63057), (1935, 42038), (3870, 21019)]