81468760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5209}}^1$

素因数の和:5260

約数の個数: 64

約数和(自身を含む): 202564800

約数和(自身を除く): 121096040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 68, 85, 92, 115, 136, 170, 184, 230, 340, 391, 460, 680, 782, 920, 1564, 1955, 3128, 3910, 5209, 7820, 10418, 15640, 20836, 26045, 41672, 52090, 88553, 104180, 119807, 177106, 208360, 239614, 354212, 442765, 479228, 599035, 708424, 885530, 958456, 1198070, 1771060, 2036719, 2396140, 3542120, 4073438, 4792280, 8146876, 10183595, 16293752, 20367190, 40734380, 81468760]

約数ペア:

[(1, 81468760), (2, 40734380), (4, 20367190), (5, 16293752), (8, 10183595), (10, 8146876), (17, 4792280), (20, 4073438), (23, 3542120), (34, 2396140), (40, 2036719), (46, 1771060), (68, 1198070), (85, 958456), (92, 885530), (115, 708424), (136, 599035), (170, 479228), (184, 442765), (230, 354212), (340, 239614), (391, 208360), (460, 177106), (680, 119807), (782, 104180), (920, 88553), (1564, 52090), (1955, 41672), (3128, 26045), (3910, 20836), (5209, 15640), (7820, 10418)]