19772320

素因数分解:

$2^5\times 5^1\times {\mathrm{191}}^1\times {\mathrm{647}}^1$

素因数の和:853

約数の個数: 48

約数和(自身を含む): 47029248

約数和(自身を除く): 27256928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 191, 382, 647, 764, 955, 1294, 1528, 1910, 2588, 3056, 3235, 3820, 5176, 6112, 6470, 7640, 10352, 12940, 15280, 20704, 25880, 30560, 51760, 103520, 123577, 247154, 494308, 617885, 988616, 1235770, 1977232, 2471540, 3954464, 4943080, 9886160, 19772320]

約数ペア:

[(1, 19772320), (2, 9886160), (4, 4943080), (5, 3954464), (8, 2471540), (10, 1977232), (16, 1235770), (20, 988616), (32, 617885), (40, 494308), (80, 247154), (160, 123577), (191, 103520), (382, 51760), (647, 30560), (764, 25880), (955, 20704), (1294, 15280), (1528, 12940), (1910, 10352), (2588, 7640), (3056, 6470), (3235, 6112), (3820, 5176)]