19685320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28949}}^1$

素因数の和:28977

約数の個数: 32

約数和(自身を含む): 46899000

約数和(自身を除く): 27213680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 28949, 57898, 115796, 144745, 231592, 289490, 492133, 578980, 984266, 1157960, 1968532, 2460665, 3937064, 4921330, 9842660, 19685320]

約数ペア:

[(1, 19685320), (2, 9842660), (4, 4921330), (5, 3937064), (8, 2460665), (10, 1968532), (17, 1157960), (20, 984266), (34, 578980), (40, 492133), (68, 289490), (85, 231592), (136, 144745), (170, 115796), (340, 57898), (680, 28949)]