28184325

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 50788416

約数和(自身を除く): 22604091

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 137, 195, 211, 325, 411, 633, 685, 975, 1055, 1781, 2055, 2743, 3165, 3425, 5275, 5343, 8229, 8905, 10275, 13715, 15825, 26715, 28907, 41145, 44525, 68575, 86721, 133575, 144535, 205725, 375791, 433605, 722675, 1127373, 1878955, 2168025, 5636865, 9394775, 28184325]

約数ペア:

[(1, 28184325), (3, 9394775), (5, 5636865), (13, 2168025), (15, 1878955), (25, 1127373), (39, 722675), (65, 433605), (75, 375791), (137, 205725), (195, 144535), (211, 133575), (325, 86721), (411, 68575), (633, 44525), (685, 41145), (975, 28907), (1055, 26715), (1781, 15825), (2055, 13715), (2743, 10275), (3165, 8905), (3425, 8229), (5275, 5343)]