19019440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21613}}^1$

素因数の和:21637

約数の個数: 40

約数和(自身を含む): 48242448

約数和(自身を除く): 29223008

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21613, 43226, 86452, 108065, 172904, 216130, 237743, 345808, 432260, 475486, 864520, 950972, 1188715, 1729040, 1901944, 2377430, 3803888, 4754860, 9509720, 19019440]

約数ペア:

[(1, 19019440), (2, 9509720), (4, 4754860), (5, 3803888), (8, 2377430), (10, 1901944), (11, 1729040), (16, 1188715), (20, 950972), (22, 864520), (40, 475486), (44, 432260), (55, 345808), (80, 237743), (88, 216130), (110, 172904), (176, 108065), (220, 86452), (440, 43226), (880, 21613)]