81656604

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3851}}^1$

素因数の和:3911

約数の個数: 72

約数和(自身を含む): 224340480

約数和(自身を除く): 142683876

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 31, 36, 38, 57, 62, 76, 93, 114, 124, 171, 186, 228, 279, 342, 372, 558, 589, 684, 1116, 1178, 1767, 2356, 3534, 3851, 5301, 7068, 7702, 10602, 11553, 15404, 21204, 23106, 34659, 46212, 69318, 73169, 119381, 138636, 146338, 219507, 238762, 292676, 358143, 439014, 477524, 658521, 716286, 878028, 1074429, 1317042, 1432572, 2148858, 2268239, 2634084, 4297716, 4536478, 6804717, 9072956, 13609434, 20414151, 27218868, 40828302, 81656604]

約数ペア:

[(1, 81656604), (2, 40828302), (3, 27218868), (4, 20414151), (6, 13609434), (9, 9072956), (12, 6804717), (18, 4536478), (19, 4297716), (31, 2634084), (36, 2268239), (38, 2148858), (57, 1432572), (62, 1317042), (76, 1074429), (93, 878028), (114, 716286), (124, 658521), (171, 477524), (186, 439014), (228, 358143), (279, 292676), (342, 238762), (372, 219507), (558, 146338), (589, 138636), (684, 119381), (1116, 73169), (1178, 69318), (1767, 46212), (2356, 34659), (3534, 23106), (3851, 21204), (5301, 15404), (7068, 11553), (7702, 10602)]