20123650

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{12983}}^1$

素因数の和:13026

約数の個数: 24

約数和(自身を含む): 38640384

約数和(自身を除く): 18516734

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 12983, 25966, 64915, 129830, 324575, 402473, 649150, 804946, 2012365, 4024730, 10061825, 20123650]

約数ペア:

[(1, 20123650), (2, 10061825), (5, 4024730), (10, 2012365), (25, 804946), (31, 649150), (50, 402473), (62, 324575), (155, 129830), (310, 64915), (775, 25966), (1550, 12983)]