15780375

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^2\times {\mathrm{83}}^1$

素因数の和:130

約数の個数: 72

約数和(自身を含む): 31174416

約数和(自身を除く): 15394041

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 83, 117, 125, 169, 195, 225, 249, 325, 375, 415, 507, 585, 747, 845, 975, 1079, 1125, 1245, 1521, 1625, 2075, 2535, 2925, 3237, 3735, 4225, 4875, 5395, 6225, 7605, 9711, 10375, 12675, 14027, 14625, 16185, 18675, 21125, 26975, 31125, 38025, 42081, 48555, 63375, 70135, 80925, 93375, 126243, 134875, 190125, 210405, 242775, 350675, 404625, 631215, 1052025, 1213875, 1753375, 3156075, 5260125, 15780375]

約数ペア:

[(1, 15780375), (3, 5260125), (5, 3156075), (9, 1753375), (13, 1213875), (15, 1052025), (25, 631215), (39, 404625), (45, 350675), (65, 242775), (75, 210405), (83, 190125), (117, 134875), (125, 126243), (169, 93375), (195, 80925), (225, 70135), (249, 63375), (325, 48555), (375, 42081), (415, 38025), (507, 31125), (585, 26975), (747, 21125), (845, 18675), (975, 16185), (1079, 14625), (1125, 14027), (1245, 12675), (1521, 10375), (1625, 9711), (2075, 7605), (2535, 6225), (2925, 5395), (3237, 4875), (3735, 4225)]