19739278544

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{289127}}^1$

素因数の和:289403

約数の個数: 40

約数和(自身を含む): 40656022848

約数和(自身を除く): 20916744304

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 251, 272, 502, 1004, 2008, 4016, 4267, 8534, 17068, 34136, 68272, 289127, 578254, 1156508, 2313016, 4626032, 4915159, 9830318, 19660636, 39321272, 72570877, 78642544, 145141754, 290283508, 580567016, 1161134032, 1233704909, 2467409818, 4934819636, 9869639272, 19739278544]

約数ペア:

[(1, 19739278544), (2, 9869639272), (4, 4934819636), (8, 2467409818), (16, 1233704909), (17, 1161134032), (34, 580567016), (68, 290283508), (136, 145141754), (251, 78642544), (272, 72570877), (502, 39321272), (1004, 19660636), (2008, 9830318), (4016, 4915159), (4267, 4626032), (8534, 2313016), (17068, 1156508), (34136, 578254), (68272, 289127)]