20443160

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9643}}^1$

素因数の和:9707

約数の個数: 32

約数和(自身を含む): 46869840

約数和(自身を除く): 26426680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 9643, 19286, 38572, 48215, 77144, 96430, 192860, 385720, 511079, 1022158, 2044316, 2555395, 4088632, 5110790, 10221580, 20443160]

約数ペア:

[(1, 20443160), (2, 10221580), (4, 5110790), (5, 4088632), (8, 2555395), (10, 2044316), (20, 1022158), (40, 511079), (53, 385720), (106, 192860), (212, 96430), (265, 77144), (424, 48215), (530, 38572), (1060, 19286), (2120, 9643)]