391691980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{11071}}^1$

素因数の和:11170

約数の個数: 48

約数和(自身を含む): 864944640

約数和(自身を除く): 473252660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 244, 290, 305, 580, 610, 1220, 1769, 3538, 7076, 8845, 11071, 17690, 22142, 35380, 44284, 55355, 110710, 221420, 321059, 642118, 675331, 1284236, 1350662, 1605295, 2701324, 3210590, 3376655, 6421180, 6753310, 13506620, 19584599, 39169198, 78338396, 97922995, 195845990, 391691980]

約数ペア:

[(1, 391691980), (2, 195845990), (4, 97922995), (5, 78338396), (10, 39169198), (20, 19584599), (29, 13506620), (58, 6753310), (61, 6421180), (116, 3376655), (122, 3210590), (145, 2701324), (244, 1605295), (290, 1350662), (305, 1284236), (580, 675331), (610, 642118), (1220, 321059), (1769, 221420), (3538, 110710), (7076, 55355), (8845, 44284), (11071, 35380), (17690, 22142)]