7878760

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3229}}^1$

素因数の和:3301

約数の個数: 32

約数和(自身を含む): 18023400

約数和(自身を除く): 10144640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 3229, 6458, 12916, 16145, 25832, 32290, 64580, 129160, 196969, 393938, 787876, 984845, 1575752, 1969690, 3939380, 7878760]

約数ペア:

[(1, 7878760), (2, 3939380), (4, 1969690), (5, 1575752), (8, 984845), (10, 787876), (20, 393938), (40, 196969), (61, 129160), (122, 64580), (244, 32290), (305, 25832), (488, 16145), (610, 12916), (1220, 6458), (2440, 3229)]