791501580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{2213}}^1$

素因数の和:4215

約数の個数: 72

約数和(自身を含む): 2403181872

約数和(自身を除く): 1611680292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1987, 2213, 3974, 4426, 5961, 6639, 7948, 8852, 9935, 11065, 11922, 13278, 17883, 19870, 19917, 22130, 23844, 26556, 29805, 33195, 35766, 39740, 39834, 44260, 59610, 66390, 71532, 79668, 89415, 99585, 119220, 132780, 178830, 199170, 357660, 398340, 4397231, 8794462, 13191693, 17588924, 21986155, 26383386, 39575079, 43972310, 52766772, 65958465, 79150158, 87944620, 131916930, 158300316, 197875395, 263833860, 395750790, 791501580]

約数ペア:

[(1, 791501580), (2, 395750790), (3, 263833860), (4, 197875395), (5, 158300316), (6, 131916930), (9, 87944620), (10, 79150158), (12, 65958465), (15, 52766772), (18, 43972310), (20, 39575079), (30, 26383386), (36, 21986155), (45, 17588924), (60, 13191693), (90, 8794462), (180, 4397231), (1987, 398340), (2213, 357660), (3974, 199170), (4426, 178830), (5961, 132780), (6639, 119220), (7948, 99585), (8852, 89415), (9935, 79668), (11065, 71532), (11922, 66390), (13278, 59610), (17883, 44260), (19870, 39834), (19917, 39740), (22130, 35766), (23844, 33195), (26556, 29805)]