81501240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{2417}}^1$

素因数の和:2712

約数の個数: 64

約数和(自身を含む): 245475360

約数和(自身を除く): 163974120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 281, 562, 843, 1124, 1405, 1686, 2248, 2417, 2810, 3372, 4215, 4834, 5620, 6744, 7251, 8430, 9668, 11240, 12085, 14502, 16860, 19336, 24170, 29004, 33720, 36255, 48340, 58008, 72510, 96680, 145020, 290040, 679177, 1358354, 2037531, 2716708, 3395885, 4075062, 5433416, 6791770, 8150124, 10187655, 13583540, 16300248, 20375310, 27167080, 40750620, 81501240]

約数ペア:

[(1, 81501240), (2, 40750620), (3, 27167080), (4, 20375310), (5, 16300248), (6, 13583540), (8, 10187655), (10, 8150124), (12, 6791770), (15, 5433416), (20, 4075062), (24, 3395885), (30, 2716708), (40, 2037531), (60, 1358354), (120, 679177), (281, 290040), (562, 145020), (843, 96680), (1124, 72510), (1405, 58008), (1686, 48340), (2248, 36255), (2417, 33720), (2810, 29004), (3372, 24170), (4215, 19336), (4834, 16860), (5620, 14502), (6744, 12085), (7251, 11240), (8430, 9668)]