18968730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1223}}^1$

素因数の和:1291

約数の個数: 64

約数和(自身を含む): 50761728

約数和(自身を除く): 31792998

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 47, 55, 66, 94, 110, 141, 165, 235, 282, 330, 470, 517, 705, 1034, 1223, 1410, 1551, 2446, 2585, 3102, 3669, 5170, 6115, 7338, 7755, 12230, 13453, 15510, 18345, 26906, 36690, 40359, 57481, 67265, 80718, 114962, 134530, 172443, 201795, 287405, 344886, 403590, 574810, 632291, 862215, 1264582, 1724430, 1896873, 3161455, 3793746, 6322910, 9484365, 18968730]

約数ペア:

[(1, 18968730), (2, 9484365), (3, 6322910), (5, 3793746), (6, 3161455), (10, 1896873), (11, 1724430), (15, 1264582), (22, 862215), (30, 632291), (33, 574810), (47, 403590), (55, 344886), (66, 287405), (94, 201795), (110, 172443), (141, 134530), (165, 114962), (235, 80718), (282, 67265), (330, 57481), (470, 40359), (517, 36690), (705, 26906), (1034, 18345), (1223, 15510), (1410, 13453), (1551, 12230), (2446, 7755), (2585, 7338), (3102, 6115), (3669, 5170)]