87859660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8839}}^1$

素因数の和:8926

約数の個数: 48

約数和(自身を含む): 213857280

約数和(自身を除く): 125997620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 8839, 9940, 17678, 35356, 44195, 61873, 88390, 123746, 176780, 247492, 309365, 618730, 627569, 1237460, 1255138, 2510276, 3137845, 4392983, 6275690, 8785966, 12551380, 17571932, 21964915, 43929830, 87859660]

約数ペア:

[(1, 87859660), (2, 43929830), (4, 21964915), (5, 17571932), (7, 12551380), (10, 8785966), (14, 6275690), (20, 4392983), (28, 3137845), (35, 2510276), (70, 1255138), (71, 1237460), (140, 627569), (142, 618730), (284, 309365), (355, 247492), (497, 176780), (710, 123746), (994, 88390), (1420, 61873), (1988, 44195), (2485, 35356), (4970, 17678), (8839, 9940)]