71902760

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{4621}}^1$

素因数の和:5021

約数の個数: 32

約数和(自身を含む): 162232200

約数和(自身を除く): 90329440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 4621, 7780, 9242, 15560, 18484, 23105, 36968, 46210, 92420, 184840, 1797569, 3595138, 7190276, 8987845, 14380552, 17975690, 35951380, 71902760]

約数ペア:

[(1, 71902760), (2, 35951380), (4, 17975690), (5, 14380552), (8, 8987845), (10, 7190276), (20, 3595138), (40, 1797569), (389, 184840), (778, 92420), (1556, 46210), (1945, 36968), (3112, 23105), (3890, 18484), (4621, 15560), (7780, 9242)]