2053220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 4762800

約数和(自身を除く): 2709580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 149, 212, 260, 265, 298, 530, 596, 689, 745, 1060, 1378, 1490, 1937, 2756, 2980, 3445, 3874, 6890, 7748, 7897, 9685, 13780, 15794, 19370, 31588, 38740, 39485, 78970, 102661, 157940, 205322, 410644, 513305, 1026610, 2053220]

約数ペア:

[(1, 2053220), (2, 1026610), (4, 513305), (5, 410644), (10, 205322), (13, 157940), (20, 102661), (26, 78970), (52, 39485), (53, 38740), (65, 31588), (106, 19370), (130, 15794), (149, 13780), (212, 9685), (260, 7897), (265, 7748), (298, 6890), (530, 3874), (596, 3445), (689, 2980), (745, 2756), (1060, 1937), (1378, 1490)]