81539880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{23431}}^1$

素因数の和:23474

約数の個数: 64

約数和(自身を含む): 253065600

約数和(自身を除く): 171525720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 116, 120, 145, 174, 232, 290, 348, 435, 580, 696, 870, 1160, 1740, 3480, 23431, 46862, 70293, 93724, 117155, 140586, 187448, 234310, 281172, 351465, 468620, 562344, 679499, 702930, 937240, 1358998, 1405860, 2038497, 2717996, 2811720, 3397495, 4076994, 5435992, 6794990, 8153988, 10192485, 13589980, 16307976, 20384970, 27179960, 40769940, 81539880]

約数ペア:

[(1, 81539880), (2, 40769940), (3, 27179960), (4, 20384970), (5, 16307976), (6, 13589980), (8, 10192485), (10, 8153988), (12, 6794990), (15, 5435992), (20, 4076994), (24, 3397495), (29, 2811720), (30, 2717996), (40, 2038497), (58, 1405860), (60, 1358998), (87, 937240), (116, 702930), (120, 679499), (145, 562344), (174, 468620), (232, 351465), (290, 281172), (348, 234310), (435, 187448), (580, 140586), (696, 117155), (870, 93724), (1160, 70293), (1740, 46862), (3480, 23431)]