20133260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4639}}^1$

素因数の和:4686

約数の個数: 48

約数和(自身を含む): 49889280

約数和(自身を除く): 29756020

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, 4639, 9278, 18556, 23195, 32473, 46390, 64946, 92780, 129892, 143809, 162365, 287618, 324730, 575236, 649460, 719045, 1006663, 1438090, 2013326, 2876180, 4026652, 5033315, 10066630, 20133260]

約数ペア:

[(1, 20133260), (2, 10066630), (4, 5033315), (5, 4026652), (7, 2876180), (10, 2013326), (14, 1438090), (20, 1006663), (28, 719045), (31, 649460), (35, 575236), (62, 324730), (70, 287618), (124, 162365), (140, 143809), (155, 129892), (217, 92780), (310, 64946), (434, 46390), (620, 32473), (868, 23195), (1085, 18556), (2170, 9278), (4340, 4639)]