64957180

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 139196736

約数和(自身を除く): 74239556

約数列:

[1, 2, 4, 5, 10, 20, 137, 151, 157, 274, 302, 314, 548, 604, 628, 685, 755, 785, 1370, 1510, 1570, 2740, 3020, 3140, 20687, 21509, 23707, 41374, 43018, 47414, 82748, 86036, 94828, 103435, 107545, 118535, 206870, 215090, 237070, 413740, 430180, 474140, 3247859, 6495718, 12991436, 16239295, 32478590, 64957180]

約数ペア:

[(1, 64957180), (2, 32478590), (4, 16239295), (5, 12991436), (10, 6495718), (20, 3247859), (137, 474140), (151, 430180), (157, 413740), (274, 237070), (302, 215090), (314, 206870), (548, 118535), (604, 107545), (628, 103435), (685, 94828), (755, 86036), (785, 82748), (1370, 47414), (1510, 43018), (1570, 41374), (2740, 23707), (3020, 21509), (3140, 20687)]