17902940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4283}}^1$

素因数の和:4322

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 25279780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4283, 8566, 17132, 21415, 42830, 47113, 81377, 85660, 94226, 162754, 188452, 235565, 325508, 406885, 471130, 813770, 895147, 942260, 1627540, 1790294, 3580588, 4475735, 8951470, 17902940]

約数ペア:

[(1, 17902940), (2, 8951470), (4, 4475735), (5, 3580588), (10, 1790294), (11, 1627540), (19, 942260), (20, 895147), (22, 813770), (38, 471130), (44, 406885), (55, 325508), (76, 235565), (95, 188452), (110, 162754), (190, 94226), (209, 85660), (220, 81377), (380, 47113), (418, 42830), (836, 21415), (1045, 17132), (2090, 8566), (4180, 4283)]