61309880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{25127}}^1$

素因数の和:25199

約数の個数: 32

約数和(自身を含む): 140214240

約数和(自身を除く): 78904360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 25127, 50254, 100508, 125635, 201016, 251270, 502540, 1005080, 1532747, 3065494, 6130988, 7663735, 12261976, 15327470, 30654940, 61309880]

約数ペア:

[(1, 61309880), (2, 30654940), (4, 15327470), (5, 12261976), (8, 7663735), (10, 6130988), (20, 3065494), (40, 1532747), (61, 1005080), (122, 502540), (244, 251270), (305, 201016), (488, 125635), (610, 100508), (1220, 50254), (2440, 25127)]