3887780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{787}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 9266880

約数和(自身を除く): 5379100

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 787, 988, 1235, 1574, 2470, 3148, 3935, 4940, 7870, 10231, 14953, 15740, 20462, 29906, 40924, 51155, 59812, 74765, 102310, 149530, 194389, 204620, 299060, 388778, 777556, 971945, 1943890, 3887780]

約数ペア:

[(1, 3887780), (2, 1943890), (4, 971945), (5, 777556), (10, 388778), (13, 299060), (19, 204620), (20, 194389), (26, 149530), (38, 102310), (52, 74765), (65, 59812), (76, 51155), (95, 40924), (130, 29906), (190, 20462), (247, 15740), (260, 14953), (380, 10231), (494, 7870), (787, 4940), (988, 3935), (1235, 3148), (1574, 2470)]