164656620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6581}}^1$

素因数の和:6735

約数の個数: 72

約数和(自身を含む): 503128080

約数和(自身を除く): 338471460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 4170, 5004, 6255, 6581, 8340, 12510, 13162, 19743, 25020, 26324, 32905, 39486, 59229, 65810, 78972, 98715, 118458, 131620, 197430, 236916, 296145, 394860, 592290, 914759, 1184580, 1829518, 2744277, 3659036, 4573795, 5488554, 8232831, 9147590, 10977108, 13721385, 16465662, 18295180, 27442770, 32931324, 41164155, 54885540, 82328310, 164656620]

約数ペア:

[(1, 164656620), (2, 82328310), (3, 54885540), (4, 41164155), (5, 32931324), (6, 27442770), (9, 18295180), (10, 16465662), (12, 13721385), (15, 10977108), (18, 9147590), (20, 8232831), (30, 5488554), (36, 4573795), (45, 3659036), (60, 2744277), (90, 1829518), (139, 1184580), (180, 914759), (278, 592290), (417, 394860), (556, 296145), (695, 236916), (834, 197430), (1251, 131620), (1390, 118458), (1668, 98715), (2085, 78972), (2502, 65810), (2780, 59229), (4170, 39486), (5004, 32905), (6255, 26324), (6581, 25020), (8340, 19743), (12510, 13162)]