28328625

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^2\times {\mathrm{149}}^1$

素因数の和:196

約数の個数: 72

約数和(自身を含む): 55668600

約数和(自身を除く): 27339975

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 125, 149, 169, 195, 225, 325, 375, 447, 507, 585, 745, 845, 975, 1125, 1341, 1521, 1625, 1937, 2235, 2535, 2925, 3725, 4225, 4875, 5811, 6705, 7605, 9685, 11175, 12675, 14625, 17433, 18625, 21125, 25181, 29055, 33525, 38025, 48425, 55875, 63375, 75543, 87165, 125905, 145275, 167625, 190125, 226629, 242125, 377715, 435825, 629525, 726375, 1133145, 1888575, 2179125, 3147625, 5665725, 9442875, 28328625]

約数ペア:

[(1, 28328625), (3, 9442875), (5, 5665725), (9, 3147625), (13, 2179125), (15, 1888575), (25, 1133145), (39, 726375), (45, 629525), (65, 435825), (75, 377715), (117, 242125), (125, 226629), (149, 190125), (169, 167625), (195, 145275), (225, 125905), (325, 87165), (375, 75543), (447, 63375), (507, 55875), (585, 48425), (745, 38025), (845, 33525), (975, 29055), (1125, 25181), (1341, 21125), (1521, 18625), (1625, 17433), (1937, 14625), (2235, 12675), (2535, 11175), (2925, 9685), (3725, 7605), (4225, 6705), (4875, 5811)]