86317540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{683}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 186157440

約数和(自身を除く): 99839900

約数列:

[1, 2, 4, 5, 10, 20, 71, 89, 142, 178, 284, 355, 356, 445, 683, 710, 890, 1366, 1420, 1780, 2732, 3415, 6319, 6830, 12638, 13660, 25276, 31595, 48493, 60787, 63190, 96986, 121574, 126380, 193972, 242465, 243148, 303935, 484930, 607870, 969860, 1215740, 4315877, 8631754, 17263508, 21579385, 43158770, 86317540]

約数ペア:

[(1, 86317540), (2, 43158770), (4, 21579385), (5, 17263508), (10, 8631754), (20, 4315877), (71, 1215740), (89, 969860), (142, 607870), (178, 484930), (284, 303935), (355, 243148), (356, 242465), (445, 193972), (683, 126380), (710, 121574), (890, 96986), (1366, 63190), (1420, 60787), (1780, 48493), (2732, 31595), (3415, 25276), (6319, 13660), (6830, 12638)]