2181506080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{80677}}^1$

素因数の和:80718

約数の個数: 72

約数和(自身を含む): 5580819972

約数和(自身を除く): 3399313892

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 845, 1040, 1352, 1690, 2080, 2704, 3380, 5408, 6760, 13520, 27040, 80677, 161354, 322708, 403385, 645416, 806770, 1048801, 1290832, 1613540, 2097602, 2581664, 3227080, 4195204, 5244005, 6454160, 8390408, 10488010, 12908320, 13634413, 16780816, 20976020, 27268826, 33561632, 41952040, 54537652, 68172065, 83904080, 109075304, 136344130, 167808160, 218150608, 272688260, 436301216, 545376520, 1090753040, 2181506080]

約数ペア:

[(1, 2181506080), (2, 1090753040), (4, 545376520), (5, 436301216), (8, 272688260), (10, 218150608), (13, 167808160), (16, 136344130), (20, 109075304), (26, 83904080), (32, 68172065), (40, 54537652), (52, 41952040), (65, 33561632), (80, 27268826), (104, 20976020), (130, 16780816), (160, 13634413), (169, 12908320), (208, 10488010), (260, 8390408), (338, 6454160), (416, 5244005), (520, 4195204), (676, 3227080), (845, 2581664), (1040, 2097602), (1352, 1613540), (1690, 1290832), (2080, 1048801), (2704, 806770), (3380, 645416), (5408, 403385), (6760, 322708), (13520, 161354), (27040, 80677)]