87484780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{61609}}^1$

素因数の和:61689

約数の個数: 24

約数和(自身を含む): 186308640

約数和(自身を除く): 98823860

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 61609, 123218, 246436, 308045, 616090, 1232180, 4374239, 8748478, 17496956, 21871195, 43742390, 87484780]

約数ペア:

[(1, 87484780), (2, 43742390), (4, 21871195), (5, 17496956), (10, 8748478), (20, 4374239), (71, 1232180), (142, 616090), (284, 308045), (355, 246436), (710, 123218), (1420, 61609)]