1639784080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{81017}}^1$

素因数の和:81064

約数の個数: 80

約数和(自身を含む): 4339972224

約数和(自身を除く): 2700188144

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 176, 184, 220, 230, 253, 368, 440, 460, 506, 880, 920, 1012, 1265, 1840, 2024, 2530, 4048, 5060, 10120, 20240, 81017, 162034, 324068, 405085, 648136, 810170, 891187, 1296272, 1620340, 1782374, 1863391, 3240680, 3564748, 3726782, 4455935, 6481360, 7129496, 7453564, 8911870, 9316955, 14258992, 14907128, 17823740, 18633910, 20497301, 29814256, 35647480, 37267820, 40994602, 71294960, 74535640, 81989204, 102486505, 149071280, 163978408, 204973010, 327956816, 409946020, 819892040, 1639784080]

約数ペア:

[(1, 1639784080), (2, 819892040), (4, 409946020), (5, 327956816), (8, 204973010), (10, 163978408), (11, 149071280), (16, 102486505), (20, 81989204), (22, 74535640), (23, 71294960), (40, 40994602), (44, 37267820), (46, 35647480), (55, 29814256), (80, 20497301), (88, 18633910), (92, 17823740), (110, 14907128), (115, 14258992), (176, 9316955), (184, 8911870), (220, 7453564), (230, 7129496), (253, 6481360), (368, 4455935), (440, 3726782), (460, 3564748), (506, 3240680), (880, 1863391), (920, 1782374), (1012, 1620340), (1265, 1296272), (1840, 891187), (2024, 810170), (2530, 648136), (4048, 405085), (5060, 324068), (10120, 162034), (20240, 81017)]