278301460

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1\times {\mathrm{443}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 593453952

約数和(自身を除く): 315152492

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 311, 404, 443, 505, 622, 886, 1010, 1244, 1555, 1772, 2020, 2215, 3110, 4430, 6220, 8860, 31411, 44743, 62822, 89486, 125644, 137773, 157055, 178972, 223715, 275546, 314110, 447430, 551092, 628220, 688865, 894860, 1377730, 2755460, 13915073, 27830146, 55660292, 69575365, 139150730, 278301460]

約数ペア:

[(1, 278301460), (2, 139150730), (4, 69575365), (5, 55660292), (10, 27830146), (20, 13915073), (101, 2755460), (202, 1377730), (311, 894860), (404, 688865), (443, 628220), (505, 551092), (622, 447430), (886, 314110), (1010, 275546), (1244, 223715), (1555, 178972), (1772, 157055), (2020, 137773), (2215, 125644), (3110, 89486), (4430, 62822), (6220, 44743), (8860, 31411)]