81108240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1021}}^1$

素因数の和:1368

約数の個数: 80

約数和(自身を含む): 252442176

約数和(自身を除く): 171333936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 331, 662, 993, 1021, 1324, 1655, 1986, 2042, 2648, 3063, 3310, 3972, 4084, 4965, 5105, 5296, 6126, 6620, 7944, 8168, 9930, 10210, 12252, 13240, 15315, 15888, 16336, 19860, 20420, 24504, 26480, 30630, 39720, 40840, 49008, 61260, 79440, 81680, 122520, 245040, 337951, 675902, 1013853, 1351804, 1689755, 2027706, 2703608, 3379510, 4055412, 5069265, 5407216, 6759020, 8110824, 10138530, 13518040, 16221648, 20277060, 27036080, 40554120, 81108240]

約数ペア:

[(1, 81108240), (2, 40554120), (3, 27036080), (4, 20277060), (5, 16221648), (6, 13518040), (8, 10138530), (10, 8110824), (12, 6759020), (15, 5407216), (16, 5069265), (20, 4055412), (24, 3379510), (30, 2703608), (40, 2027706), (48, 1689755), (60, 1351804), (80, 1013853), (120, 675902), (240, 337951), (331, 245040), (662, 122520), (993, 81680), (1021, 79440), (1324, 61260), (1655, 49008), (1986, 40840), (2042, 39720), (2648, 30630), (3063, 26480), (3310, 24504), (3972, 20420), (4084, 19860), (4965, 16336), (5105, 15888), (5296, 15315), (6126, 13240), (6620, 12252), (7944, 10210), (8168, 9930)]