80884780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{397}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 174113856

約数和(自身を除く): 93229076

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 167, 244, 305, 334, 397, 610, 668, 794, 835, 1220, 1588, 1670, 1985, 3340, 3970, 7940, 10187, 20374, 24217, 40748, 48434, 50935, 66299, 96868, 101870, 121085, 132598, 203740, 242170, 265196, 331495, 484340, 662990, 1325980, 4044239, 8088478, 16176956, 20221195, 40442390, 80884780]

約数ペア:

[(1, 80884780), (2, 40442390), (4, 20221195), (5, 16176956), (10, 8088478), (20, 4044239), (61, 1325980), (122, 662990), (167, 484340), (244, 331495), (305, 265196), (334, 242170), (397, 203740), (610, 132598), (668, 121085), (794, 101870), (835, 96868), (1220, 66299), (1588, 50935), (1670, 48434), (1985, 40748), (3340, 24217), (3970, 20374), (7940, 10187)]