20690950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1907}}^1$

素因数の和:1957

約数の個数: 48

約数和(自身を含む): 45425664

約数和(自身を除く): 24734714

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 50, 62, 70, 155, 175, 217, 310, 350, 434, 775, 1085, 1550, 1907, 2170, 3814, 5425, 9535, 10850, 13349, 19070, 26698, 47675, 59117, 66745, 95350, 118234, 133490, 295585, 333725, 413819, 591170, 667450, 827638, 1477925, 2069095, 2955850, 4138190, 10345475, 20690950]

約数ペア:

[(1, 20690950), (2, 10345475), (5, 4138190), (7, 2955850), (10, 2069095), (14, 1477925), (25, 827638), (31, 667450), (35, 591170), (50, 413819), (62, 333725), (70, 295585), (155, 133490), (175, 118234), (217, 95350), (310, 66745), (350, 59117), (434, 47675), (775, 26698), (1085, 19070), (1550, 13349), (1907, 10850), (2170, 9535), (3814, 5425)]