201207640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{56519}}^1$

素因数の和:56619

約数の個数: 32

約数和(自身を含む): 457812000

約数和(自身を除く): 256604360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 56519, 113038, 226076, 282595, 452152, 565190, 1130380, 2260760, 5030191, 10060382, 20120764, 25150955, 40241528, 50301910, 100603820, 201207640]

約数ペア:

[(1, 201207640), (2, 100603820), (4, 50301910), (5, 40241528), (8, 25150955), (10, 20120764), (20, 10060382), (40, 5030191), (89, 2260760), (178, 1130380), (356, 565190), (445, 452152), (712, 282595), (890, 226076), (1780, 113038), (3560, 56519)]