8728280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:344

約数の個数: 64

約数和(自身を含む): 21772800

約数和(自身を除く): 13044520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 83, 88, 110, 166, 220, 239, 332, 415, 440, 478, 664, 830, 913, 956, 1195, 1660, 1826, 1912, 2390, 2629, 3320, 3652, 4565, 4780, 5258, 7304, 9130, 9560, 10516, 13145, 18260, 19837, 21032, 26290, 36520, 39674, 52580, 79348, 99185, 105160, 158696, 198370, 218207, 396740, 436414, 793480, 872828, 1091035, 1745656, 2182070, 4364140, 8728280]

約数ペア:

[(1, 8728280), (2, 4364140), (4, 2182070), (5, 1745656), (8, 1091035), (10, 872828), (11, 793480), (20, 436414), (22, 396740), (40, 218207), (44, 198370), (55, 158696), (83, 105160), (88, 99185), (110, 79348), (166, 52580), (220, 39674), (239, 36520), (332, 26290), (415, 21032), (440, 19837), (478, 18260), (664, 13145), (830, 10516), (913, 9560), (956, 9130), (1195, 7304), (1660, 5258), (1826, 4780), (1912, 4565), (2390, 3652), (2629, 3320)]