19481660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5209}}^1$

素因数の和:5246

約数の個数: 48

約数和(自身を含む): 47265120

約数和(自身を除く): 27783460

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5209, 10418, 20836, 26045, 52090, 57299, 88553, 104180, 114598, 177106, 229196, 286495, 354212, 442765, 572990, 885530, 974083, 1145980, 1771060, 1948166, 3896332, 4870415, 9740830, 19481660]

約数ペア:

[(1, 19481660), (2, 9740830), (4, 4870415), (5, 3896332), (10, 1948166), (11, 1771060), (17, 1145980), (20, 974083), (22, 885530), (34, 572990), (44, 442765), (55, 354212), (68, 286495), (85, 229196), (110, 177106), (170, 114598), (187, 104180), (220, 88553), (340, 57299), (374, 52090), (748, 26045), (935, 20836), (1870, 10418), (3740, 5209)]