217838940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1381}}^1$

素因数の和:1643

約数の個数: 96

約数和(自身を含む): 668666880

約数和(自身を除く): 450827940

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 239, 330, 478, 660, 717, 956, 1195, 1381, 1434, 2390, 2629, 2762, 2868, 3585, 4143, 4780, 5258, 5524, 6905, 7170, 7887, 8286, 10516, 13145, 13810, 14340, 15191, 15774, 16572, 20715, 26290, 27620, 30382, 31548, 39435, 41430, 45573, 52580, 60764, 75955, 78870, 82860, 91146, 151910, 157740, 182292, 227865, 303820, 330059, 455730, 660118, 911460, 990177, 1320236, 1650295, 1980354, 3300590, 3630649, 3960708, 4950885, 6601180, 7261298, 9901770, 10891947, 14522596, 18153245, 19803540, 21783894, 36306490, 43567788, 54459735, 72612980, 108919470, 217838940]

約数ペア:

[(1, 217838940), (2, 108919470), (3, 72612980), (4, 54459735), (5, 43567788), (6, 36306490), (10, 21783894), (11, 19803540), (12, 18153245), (15, 14522596), (20, 10891947), (22, 9901770), (30, 7261298), (33, 6601180), (44, 4950885), (55, 3960708), (60, 3630649), (66, 3300590), (110, 1980354), (132, 1650295), (165, 1320236), (220, 990177), (239, 911460), (330, 660118), (478, 455730), (660, 330059), (717, 303820), (956, 227865), (1195, 182292), (1381, 157740), (1434, 151910), (2390, 91146), (2629, 82860), (2762, 78870), (2868, 75955), (3585, 60764), (4143, 52580), (4780, 45573), (5258, 41430), (5524, 39435), (6905, 31548), (7170, 30382), (7887, 27620), (8286, 26290), (10516, 20715), (13145, 16572), (13810, 15774), (14340, 15191)]