20059820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4799}}^1$

素因数の和:4838

約数の個数: 48

約数和(自身を含む): 48384000

約数和(自身を除く): 28324180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4799, 9598, 19196, 23995, 47990, 52789, 91181, 95980, 105578, 182362, 211156, 263945, 364724, 455905, 527890, 911810, 1002991, 1055780, 1823620, 2005982, 4011964, 5014955, 10029910, 20059820]

約数ペア:

[(1, 20059820), (2, 10029910), (4, 5014955), (5, 4011964), (10, 2005982), (11, 1823620), (19, 1055780), (20, 1002991), (22, 911810), (38, 527890), (44, 455905), (55, 364724), (76, 263945), (95, 211156), (110, 182362), (190, 105578), (209, 95980), (220, 91181), (380, 52789), (418, 47990), (836, 23995), (1045, 19196), (2090, 9598), (4180, 4799)]