31486700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1451}}^1$

素因数の和:1503

約数の個数: 72

約数和(自身を含む): 80661504

約数和(自身を除く): 49174804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 140, 155, 175, 217, 310, 350, 434, 620, 700, 775, 868, 1085, 1451, 1550, 2170, 2902, 3100, 4340, 5425, 5804, 7255, 10157, 10850, 14510, 20314, 21700, 29020, 36275, 40628, 44981, 50785, 72550, 89962, 101570, 145100, 179924, 203140, 224905, 253925, 314867, 449810, 507850, 629734, 899620, 1015700, 1124525, 1259468, 1574335, 2249050, 3148670, 4498100, 6297340, 7871675, 15743350, 31486700]

約数ペア:

[(1, 31486700), (2, 15743350), (4, 7871675), (5, 6297340), (7, 4498100), (10, 3148670), (14, 2249050), (20, 1574335), (25, 1259468), (28, 1124525), (31, 1015700), (35, 899620), (50, 629734), (62, 507850), (70, 449810), (100, 314867), (124, 253925), (140, 224905), (155, 203140), (175, 179924), (217, 145100), (310, 101570), (350, 89962), (434, 72550), (620, 50785), (700, 44981), (775, 40628), (868, 36275), (1085, 29020), (1451, 21700), (1550, 20314), (2170, 14510), (2902, 10850), (3100, 10157), (4340, 7255), (5425, 5804)]