626588680

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1\times {\mathrm{1049}}^1$

素因数の和:1306

約数の個数: 64

約数和(自身を含む): 1434510000

約数和(自身を除く): 807921320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 137, 218, 274, 436, 545, 548, 685, 872, 1049, 1090, 1096, 1370, 2098, 2180, 2740, 4196, 4360, 5245, 5480, 8392, 10490, 14933, 20980, 29866, 41960, 59732, 74665, 114341, 119464, 143713, 149330, 228682, 287426, 298660, 457364, 571705, 574852, 597320, 718565, 914728, 1143410, 1149704, 1437130, 2286820, 2874260, 4573640, 5748520, 15664717, 31329434, 62658868, 78323585, 125317736, 156647170, 313294340, 626588680]

約数ペア:

[(1, 626588680), (2, 313294340), (4, 156647170), (5, 125317736), (8, 78323585), (10, 62658868), (20, 31329434), (40, 15664717), (109, 5748520), (137, 4573640), (218, 2874260), (274, 2286820), (436, 1437130), (545, 1149704), (548, 1143410), (685, 914728), (872, 718565), (1049, 597320), (1090, 574852), (1096, 571705), (1370, 457364), (2098, 298660), (2180, 287426), (2740, 228682), (4196, 149330), (4360, 143713), (5245, 119464), (5480, 114341), (8392, 74665), (10490, 59732), (14933, 41960), (20980, 29866)]