31455140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{281}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 68932080

約数和(自身を除く): 37476940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 193, 281, 290, 386, 562, 580, 772, 965, 1124, 1405, 1930, 2810, 3860, 5597, 5620, 8149, 11194, 16298, 22388, 27985, 32596, 40745, 54233, 55970, 81490, 108466, 111940, 162980, 216932, 271165, 542330, 1084660, 1572757, 3145514, 6291028, 7863785, 15727570, 31455140]

約数ペア:

[(1, 31455140), (2, 15727570), (4, 7863785), (5, 6291028), (10, 3145514), (20, 1572757), (29, 1084660), (58, 542330), (116, 271165), (145, 216932), (193, 162980), (281, 111940), (290, 108466), (386, 81490), (562, 55970), (580, 54233), (772, 40745), (965, 32596), (1124, 27985), (1405, 22388), (1930, 16298), (2810, 11194), (3860, 8149), (5597, 5620)]