7978850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:275

約数の個数: 48

約数和(自身を含む): 16472160

約数和(自身を除く): 8493310

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 89, 110, 163, 178, 275, 326, 445, 550, 815, 890, 979, 1630, 1793, 1958, 2225, 3586, 4075, 4450, 4895, 8150, 8965, 9790, 14507, 17930, 24475, 29014, 44825, 48950, 72535, 89650, 145070, 159577, 319154, 362675, 725350, 797885, 1595770, 3989425, 7978850]

約数ペア:

[(1, 7978850), (2, 3989425), (5, 1595770), (10, 797885), (11, 725350), (22, 362675), (25, 319154), (50, 159577), (55, 145070), (89, 89650), (110, 72535), (163, 48950), (178, 44825), (275, 29014), (326, 24475), (445, 17930), (550, 14507), (815, 9790), (890, 8965), (979, 8150), (1630, 4895), (1793, 4450), (1958, 4075), (2225, 3586)]