18960975

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:237

約数の個数: 72

約数和(自身を含む): 38068992

約数和(自身を除く): 19108017

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 47, 55, 75, 99, 141, 163, 165, 225, 235, 275, 423, 489, 495, 517, 705, 815, 825, 1175, 1467, 1551, 1793, 2115, 2445, 2475, 2585, 3525, 4075, 4653, 5379, 7335, 7661, 7755, 8965, 10575, 12225, 12925, 16137, 22983, 23265, 26895, 36675, 38305, 38775, 44825, 68949, 80685, 84271, 114915, 116325, 134475, 191525, 252813, 344745, 403425, 421355, 574575, 758439, 1264065, 1723725, 2106775, 3792195, 6320325, 18960975]

約数ペア:

[(1, 18960975), (3, 6320325), (5, 3792195), (9, 2106775), (11, 1723725), (15, 1264065), (25, 758439), (33, 574575), (45, 421355), (47, 403425), (55, 344745), (75, 252813), (99, 191525), (141, 134475), (163, 116325), (165, 114915), (225, 84271), (235, 80685), (275, 68949), (423, 44825), (489, 38775), (495, 38305), (517, 36675), (705, 26895), (815, 23265), (825, 22983), (1175, 16137), (1467, 12925), (1551, 12225), (1793, 10575), (2115, 8965), (2445, 7755), (2475, 7661), (2585, 7335), (3525, 5379), (4075, 4653)]