7581980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1747}}^1$

素因数の和:1794

約数の個数: 48

約数和(自身を含む): 18794496

約数和(自身を除く): 11212516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 1747, 2170, 3494, 4340, 6988, 8735, 12229, 17470, 24458, 34940, 48916, 54157, 61145, 108314, 122290, 216628, 244580, 270785, 379099, 541570, 758198, 1083140, 1516396, 1895495, 3790990, 7581980]

約数ペア:

[(1, 7581980), (2, 3790990), (4, 1895495), (5, 1516396), (7, 1083140), (10, 758198), (14, 541570), (20, 379099), (28, 270785), (31, 244580), (35, 216628), (62, 122290), (70, 108314), (124, 61145), (140, 54157), (155, 48916), (217, 34940), (310, 24458), (434, 17470), (620, 12229), (868, 8735), (1085, 6988), (1747, 4340), (2170, 3494)]