81580840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{5981}}^1$

素因数の和:6034

約数の個数: 64

約数和(自身を含む): 206737920

約数和(自身を除く): 125157080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 5981, 6820, 11962, 13640, 23924, 29905, 47848, 59810, 65791, 119620, 131582, 185411, 239240, 263164, 328955, 370822, 526328, 657910, 741644, 927055, 1315820, 1483288, 1854110, 2039521, 2631640, 3708220, 4079042, 7416440, 8158084, 10197605, 16316168, 20395210, 40790420, 81580840]

約数ペア:

[(1, 81580840), (2, 40790420), (4, 20395210), (5, 16316168), (8, 10197605), (10, 8158084), (11, 7416440), (20, 4079042), (22, 3708220), (31, 2631640), (40, 2039521), (44, 1854110), (55, 1483288), (62, 1315820), (88, 927055), (110, 741644), (124, 657910), (155, 526328), (220, 370822), (248, 328955), (310, 263164), (341, 239240), (440, 185411), (620, 131582), (682, 119620), (1240, 65791), (1364, 59810), (1705, 47848), (2728, 29905), (3410, 23924), (5981, 13640), (6820, 11962)]