208570725

素因数分解:

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

素因数の和:248

約数の個数: 108

約数和(自身を含む): 421931328

約数和(自身を除く): 213360603

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 47, 55, 75, 99, 121, 141, 163, 165, 225, 235, 275, 363, 423, 489, 495, 517, 605, 705, 815, 825, 1089, 1175, 1467, 1551, 1793, 1815, 2115, 2445, 2475, 2585, 3025, 3525, 4075, 4653, 5379, 5445, 5687, 7335, 7661, 7755, 8965, 9075, 10575, 12225, 12925, 16137, 17061, 19723, 22983, 23265, 26895, 27225, 28435, 36675, 38305, 38775, 44825, 51183, 59169, 68949, 80685, 84271, 85305, 98615, 114915, 116325, 134475, 142175, 177507, 191525, 252813, 255915, 295845, 344745, 403425, 421355, 426525, 493075, 574575, 758439, 887535, 926981, 1264065, 1279575, 1479225, 1723725, 2106775, 2780943, 3792195, 4437675, 4634905, 6320325, 8342829, 13904715, 18960975, 23174525, 41714145, 69523575, 208570725]

約数ペア:

[(1, 208570725), (3, 69523575), (5, 41714145), (9, 23174525), (11, 18960975), (15, 13904715), (25, 8342829), (33, 6320325), (45, 4634905), (47, 4437675), (55, 3792195), (75, 2780943), (99, 2106775), (121, 1723725), (141, 1479225), (163, 1279575), (165, 1264065), (225, 926981), (235, 887535), (275, 758439), (363, 574575), (423, 493075), (489, 426525), (495, 421355), (517, 403425), (605, 344745), (705, 295845), (815, 255915), (825, 252813), (1089, 191525), (1175, 177507), (1467, 142175), (1551, 134475), (1793, 116325), (1815, 114915), (2115, 98615), (2445, 85305), (2475, 84271), (2585, 80685), (3025, 68949), (3525, 59169), (4075, 51183), (4653, 44825), (5379, 38775), (5445, 38305), (5687, 36675), (7335, 28435), (7661, 27225), (7755, 26895), (8965, 23265), (9075, 22983), (10575, 19723), (12225, 17061), (12925, 16137)]