51815260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11939}}^1$

素因数の和:11986

約数の個数: 48

約数和(自身を含む): 128378880

約数和(自身を除く): 76563620

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, 2170, 4340, 11939, 23878, 47756, 59695, 83573, 119390, 167146, 238780, 334292, 370109, 417865, 740218, 835730, 1480436, 1671460, 1850545, 2590763, 3701090, 5181526, 7402180, 10363052, 12953815, 25907630, 51815260]

約数ペア:

[(1, 51815260), (2, 25907630), (4, 12953815), (5, 10363052), (7, 7402180), (10, 5181526), (14, 3701090), (20, 2590763), (28, 1850545), (31, 1671460), (35, 1480436), (62, 835730), (70, 740218), (124, 417865), (140, 370109), (155, 334292), (217, 238780), (310, 167146), (434, 119390), (620, 83573), (868, 59695), (1085, 47756), (2170, 23878), (4340, 11939)]