142787240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{115151}}^1$

素因数の和:115193

約数の個数: 32

約数和(自身を含む): 331637760

約数和(自身を除く): 188850520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 115151, 230302, 460604, 575755, 921208, 1151510, 2303020, 3569681, 4606040, 7139362, 14278724, 17848405, 28557448, 35696810, 71393620, 142787240]

約数ペア:

[(1, 142787240), (2, 71393620), (4, 35696810), (5, 28557448), (8, 17848405), (10, 14278724), (20, 7139362), (31, 4606040), (40, 3569681), (62, 2303020), (124, 1151510), (155, 921208), (248, 575755), (310, 460604), (620, 230302), (1240, 115151)]