20215125

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1$

素因数の和:196

約数の個数: 96

約数和(自身を含む): 44388864

約数和(自身を除く): 24173739

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 25, 35, 45, 51, 63, 75, 85, 105, 119, 125, 151, 153, 175, 225, 255, 315, 357, 375, 425, 453, 525, 595, 755, 765, 875, 1057, 1071, 1125, 1275, 1359, 1575, 1785, 2125, 2265, 2567, 2625, 2975, 3171, 3775, 3825, 5285, 5355, 6375, 6795, 7701, 7875, 8925, 9513, 11325, 12835, 14875, 15855, 17969, 18875, 19125, 23103, 26425, 26775, 33975, 38505, 44625, 47565, 53907, 56625, 64175, 79275, 89845, 115515, 132125, 133875, 161721, 169875, 192525, 237825, 269535, 320875, 396375, 449225, 577575, 808605, 962625, 1189125, 1347675, 2246125, 2887875, 4043025, 6738375, 20215125]

約数ペア:

[(1, 20215125), (3, 6738375), (5, 4043025), (7, 2887875), (9, 2246125), (15, 1347675), (17, 1189125), (21, 962625), (25, 808605), (35, 577575), (45, 449225), (51, 396375), (63, 320875), (75, 269535), (85, 237825), (105, 192525), (119, 169875), (125, 161721), (151, 133875), (153, 132125), (175, 115515), (225, 89845), (255, 79275), (315, 64175), (357, 56625), (375, 53907), (425, 47565), (453, 44625), (525, 38505), (595, 33975), (755, 26775), (765, 26425), (875, 23103), (1057, 19125), (1071, 18875), (1125, 17969), (1275, 15855), (1359, 14875), (1575, 12835), (1785, 11325), (2125, 9513), (2265, 8925), (2567, 7875), (2625, 7701), (2975, 6795), (3171, 6375), (3775, 5355), (3825, 5285)]