128528520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2671}}^1$

素因数の和:3086

約数の個数: 64

約数和(自身を含む): 386691840

約数和(自身を除く): 258163320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 401, 802, 1203, 1604, 2005, 2406, 2671, 3208, 4010, 4812, 5342, 6015, 8013, 8020, 9624, 10684, 12030, 13355, 16026, 16040, 21368, 24060, 26710, 32052, 40065, 48120, 53420, 64104, 80130, 106840, 160260, 320520, 1071071, 2142142, 3213213, 4284284, 5355355, 6426426, 8568568, 10710710, 12852852, 16066065, 21421420, 25705704, 32132130, 42842840, 64264260, 128528520]

約数ペア:

[(1, 128528520), (2, 64264260), (3, 42842840), (4, 32132130), (5, 25705704), (6, 21421420), (8, 16066065), (10, 12852852), (12, 10710710), (15, 8568568), (20, 6426426), (24, 5355355), (30, 4284284), (40, 3213213), (60, 2142142), (120, 1071071), (401, 320520), (802, 160260), (1203, 106840), (1604, 80130), (2005, 64104), (2406, 53420), (2671, 48120), (3208, 40065), (4010, 32052), (4812, 26710), (5342, 24060), (6015, 21368), (8013, 16040), (8020, 16026), (9624, 13355), (10684, 12030)]