19815226960

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1110719}}^1$

素因数の和:1110955

約数の個数: 40

約数和(自身を含む): 46277038080

約数和(自身を除く): 26461811120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1784, 2230, 3568, 4460, 8920, 17840, 1110719, 2221438, 4442876, 5553595, 8885752, 11107190, 17771504, 22214380, 44428760, 88857520, 247690337, 495380674, 990761348, 1238451685, 1981522696, 2476903370, 3963045392, 4953806740, 9907613480, 19815226960]

約数ペア:

[(1, 19815226960), (2, 9907613480), (4, 4953806740), (5, 3963045392), (8, 2476903370), (10, 1981522696), (16, 1238451685), (20, 990761348), (40, 495380674), (80, 247690337), (223, 88857520), (446, 44428760), (892, 22214380), (1115, 17771504), (1784, 11107190), (2230, 8885752), (3568, 5553595), (4460, 4442876), (8920, 2221438), (17840, 1110719)]