18629780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{907}}^1$

素因数の和:1008

約数の個数: 48

約数和(自身を含む): 42712320

約数和(自身を除く): 24082540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 907, 1027, 1580, 1814, 2054, 3628, 4108, 4535, 5135, 9070, 10270, 11791, 18140, 20540, 23582, 47164, 58955, 71653, 117910, 143306, 235820, 286612, 358265, 716530, 931489, 1433060, 1862978, 3725956, 4657445, 9314890, 18629780]

約数ペア:

[(1, 18629780), (2, 9314890), (4, 4657445), (5, 3725956), (10, 1862978), (13, 1433060), (20, 931489), (26, 716530), (52, 358265), (65, 286612), (79, 235820), (130, 143306), (158, 117910), (260, 71653), (316, 58955), (395, 47164), (790, 23582), (907, 20540), (1027, 18140), (1580, 11791), (1814, 10270), (2054, 9070), (3628, 5135), (4108, 4535)]