19634320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{14437}}^1$

素因数の和:14467

約数の個数: 40

約数和(自身を含む): 48338424

約数和(自身を除く): 28704104

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 14437, 28874, 57748, 72185, 115496, 144370, 230992, 245429, 288740, 490858, 577480, 981716, 1154960, 1227145, 1963432, 2454290, 3926864, 4908580, 9817160, 19634320]

約数ペア:

[(1, 19634320), (2, 9817160), (4, 4908580), (5, 3926864), (8, 2454290), (10, 1963432), (16, 1227145), (17, 1154960), (20, 981716), (34, 577480), (40, 490858), (68, 288740), (80, 245429), (85, 230992), (136, 144370), (170, 115496), (272, 72185), (340, 57748), (680, 28874), (1360, 14437)]