20244830

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 39417840

約数和(自身を除く): 19173010

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 89, 115, 178, 215, 230, 430, 445, 529, 890, 989, 1058, 1978, 2047, 2645, 3827, 4094, 4945, 5290, 7654, 9890, 10235, 19135, 20470, 22747, 38270, 45494, 47081, 88021, 94162, 113735, 176042, 227470, 235405, 440105, 470810, 880210, 2024483, 4048966, 10122415, 20244830]

約数ペア:

[(1, 20244830), (2, 10122415), (5, 4048966), (10, 2024483), (23, 880210), (43, 470810), (46, 440105), (86, 235405), (89, 227470), (115, 176042), (178, 113735), (215, 94162), (230, 88021), (430, 47081), (445, 45494), (529, 38270), (890, 22747), (989, 20470), (1058, 19135), (1978, 10235), (2047, 9890), (2645, 7654), (3827, 5290), (4094, 4945)]