9749020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^2\times {\mathrm{131}}^1$

素因数の和:262

約数の個数: 36

約数和(自身を含む): 20972952

約数和(自身を除く): 11223932

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 131, 244, 262, 305, 524, 610, 655, 1220, 1310, 2620, 3721, 7442, 7991, 14884, 15982, 18605, 31964, 37210, 39955, 74420, 79910, 159820, 487451, 974902, 1949804, 2437255, 4874510, 9749020]

約数ペア:

[(1, 9749020), (2, 4874510), (4, 2437255), (5, 1949804), (10, 974902), (20, 487451), (61, 159820), (122, 79910), (131, 74420), (244, 39955), (262, 37210), (305, 31964), (524, 18605), (610, 15982), (655, 14884), (1220, 7991), (1310, 7442), (2620, 3721)]