16816280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{443}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 41398560

約数和(自身を除く): 24582280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 443, 520, 584, 730, 886, 949, 1460, 1772, 1898, 2215, 2920, 3544, 3796, 4430, 4745, 5759, 7592, 8860, 9490, 11518, 17720, 18980, 23036, 28795, 32339, 37960, 46072, 57590, 64678, 115180, 129356, 161695, 230360, 258712, 323390, 420407, 646780, 840814, 1293560, 1681628, 2102035, 3363256, 4204070, 8408140, 16816280]

約数ペア:

[(1, 16816280), (2, 8408140), (4, 4204070), (5, 3363256), (8, 2102035), (10, 1681628), (13, 1293560), (20, 840814), (26, 646780), (40, 420407), (52, 323390), (65, 258712), (73, 230360), (104, 161695), (130, 129356), (146, 115180), (260, 64678), (292, 57590), (365, 46072), (443, 37960), (520, 32339), (584, 28795), (730, 23036), (886, 18980), (949, 17720), (1460, 11518), (1772, 9490), (1898, 8860), (2215, 7592), (2920, 5759), (3544, 4745), (3796, 4430)]