28702921000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2207917}}^1$

素因数の和:2207951

約数の個数: 64

約数和(自身を含む): 72331393680

約数和(自身を除く): 43628472680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 1000, 1300, 1625, 2600, 3250, 6500, 13000, 2207917, 4415834, 8831668, 11039585, 17663336, 22079170, 28702921, 44158340, 55197925, 57405842, 88316680, 110395850, 114811684, 143514605, 220791700, 229623368, 275989625, 287029210, 441583400, 551979250, 574058420, 717573025, 1103958500, 1148116840, 1435146050, 2207917000, 2870292100, 3587865125, 5740584200, 7175730250, 14351460500, 28702921000]

約数ペア:

[(1, 28702921000), (2, 14351460500), (4, 7175730250), (5, 5740584200), (8, 3587865125), (10, 2870292100), (13, 2207917000), (20, 1435146050), (25, 1148116840), (26, 1103958500), (40, 717573025), (50, 574058420), (52, 551979250), (65, 441583400), (100, 287029210), (104, 275989625), (125, 229623368), (130, 220791700), (200, 143514605), (250, 114811684), (260, 110395850), (325, 88316680), (500, 57405842), (520, 55197925), (650, 44158340), (1000, 28702921), (1300, 22079170), (1625, 17663336), (2600, 11039585), (3250, 8831668), (6500, 4415834), (13000, 2207917)]