18967996815

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1\times {\mathrm{2503}}^1$

素因数の和:2964

約数の個数: 64

約数和(自身を含む): 32153763840

約数和(自身を除く): 13185767025

約数列:

[1, 3, 5, 15, 31, 43, 93, 129, 155, 215, 379, 465, 645, 1137, 1333, 1895, 2503, 3999, 5685, 6665, 7509, 11749, 12515, 16297, 19995, 35247, 37545, 48891, 58745, 77593, 81485, 107629, 176235, 232779, 244455, 322887, 387965, 505207, 538145, 948637, 1163895, 1515621, 1614435, 2526035, 2845911, 3336499, 4743185, 7578105, 10009497, 14229555, 16682495, 29407747, 40791391, 50047485, 88223241, 122374173, 147038735, 203956955, 441116205, 611870865, 1264533121, 3793599363, 6322665605, 18967996815]

約数ペア:

[(1, 18967996815), (3, 6322665605), (5, 3793599363), (15, 1264533121), (31, 611870865), (43, 441116205), (93, 203956955), (129, 147038735), (155, 122374173), (215, 88223241), (379, 50047485), (465, 40791391), (645, 29407747), (1137, 16682495), (1333, 14229555), (1895, 10009497), (2503, 7578105), (3999, 4743185), (5685, 3336499), (6665, 2845911), (7509, 2526035), (11749, 1614435), (12515, 1515621), (16297, 1163895), (19995, 948637), (35247, 538145), (37545, 505207), (48891, 387965), (58745, 322887), (77593, 244455), (81485, 232779), (107629, 176235)]