8219960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{947}}^1$

素因数の和:996

約数の個数: 64

約数和(自身を含む): 21841920

約数和(自身を除く): 13621960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 947, 1085, 1240, 1736, 1894, 2170, 3788, 4340, 4735, 6629, 7576, 8680, 9470, 13258, 18940, 26516, 29357, 33145, 37880, 53032, 58714, 66290, 117428, 132580, 146785, 205499, 234856, 265160, 293570, 410998, 587140, 821996, 1027495, 1174280, 1643992, 2054990, 4109980, 8219960]

約数ペア:

[(1, 8219960), (2, 4109980), (4, 2054990), (5, 1643992), (7, 1174280), (8, 1027495), (10, 821996), (14, 587140), (20, 410998), (28, 293570), (31, 265160), (35, 234856), (40, 205499), (56, 146785), (62, 132580), (70, 117428), (124, 66290), (140, 58714), (155, 53032), (217, 37880), (248, 33145), (280, 29357), (310, 26516), (434, 18940), (620, 13258), (868, 9470), (947, 8680), (1085, 7576), (1240, 6629), (1736, 4735), (1894, 4340), (2170, 3788)]