164863480

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67567}}^1$

素因数の和:67639

約数の個数: 32

約数和(自身を含む): 377029440

約数和(自身を除く): 212165960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 67567, 135134, 270268, 337835, 540536, 675670, 1351340, 2702680, 4121587, 8243174, 16486348, 20607935, 32972696, 41215870, 82431740, 164863480]

約数ペア:

[(1, 164863480), (2, 82431740), (4, 41215870), (5, 32972696), (8, 20607935), (10, 16486348), (20, 8243174), (40, 4121587), (61, 2702680), (122, 1351340), (244, 675670), (305, 540536), (488, 337835), (610, 270268), (1220, 135134), (2440, 67567)]