28403700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7283}}^1$

素因数の和:7313

約数の個数: 72

約数和(自身を含む): 88515168

約数和(自身を除く): 60111468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 7283, 14566, 21849, 29132, 36415, 43698, 72830, 87396, 94679, 109245, 145660, 182075, 189358, 218490, 284037, 364150, 378716, 436980, 473395, 546225, 568074, 728300, 946790, 1092450, 1136148, 1420185, 1893580, 2184900, 2366975, 2840370, 4733950, 5680740, 7100925, 9467900, 14201850, 28403700]

約数ペア:

[(1, 28403700), (2, 14201850), (3, 9467900), (4, 7100925), (5, 5680740), (6, 4733950), (10, 2840370), (12, 2366975), (13, 2184900), (15, 1893580), (20, 1420185), (25, 1136148), (26, 1092450), (30, 946790), (39, 728300), (50, 568074), (52, 546225), (60, 473395), (65, 436980), (75, 378716), (78, 364150), (100, 284037), (130, 218490), (150, 189358), (156, 182075), (195, 145660), (260, 109245), (300, 94679), (325, 87396), (390, 72830), (650, 43698), (780, 36415), (975, 29132), (1300, 21849), (1950, 14566), (3900, 7283)]