18701320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2237}}^1$

素因数の和:2278

約数の個数: 64

約数和(自身を含む): 48340800

約数和(自身を除く): 29639480

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 2237, 4180, 4474, 8360, 8948, 11185, 17896, 22370, 24607, 42503, 44740, 49214, 85006, 89480, 98428, 123035, 170012, 196856, 212515, 246070, 340024, 425030, 467533, 492140, 850060, 935066, 984280, 1700120, 1870132, 2337665, 3740264, 4675330, 9350660, 18701320]

約数ペア:

[(1, 18701320), (2, 9350660), (4, 4675330), (5, 3740264), (8, 2337665), (10, 1870132), (11, 1700120), (19, 984280), (20, 935066), (22, 850060), (38, 492140), (40, 467533), (44, 425030), (55, 340024), (76, 246070), (88, 212515), (95, 196856), (110, 170012), (152, 123035), (190, 98428), (209, 89480), (220, 85006), (380, 49214), (418, 44740), (440, 42503), (760, 24607), (836, 22370), (1045, 17896), (1672, 11185), (2090, 8948), (2237, 8360), (4180, 4474)]