80747480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 211507200

約数和(自身を除く): 130759720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 79, 88, 92, 101, 110, 115, 158, 184, 202, 220, 230, 253, 316, 395, 404, 440, 460, 505, 506, 632, 790, 808, 869, 920, 1010, 1012, 1111, 1265, 1580, 1738, 1817, 2020, 2024, 2222, 2323, 2530, 3160, 3476, 3634, 4040, 4345, 4444, 4646, 5060, 5555, 6952, 7268, 7979, 8690, 8888, 9085, 9292, 10120, 11110, 11615, 14536, 15958, 17380, 18170, 18584, 19987, 22220, 23230, 25553, 31916, 34760, 36340, 39895, 39974, 44440, 46460, 51106, 63832, 72680, 79790, 79948, 87769, 92920, 99935, 102212, 127765, 159580, 159896, 175538, 183517, 199870, 204424, 255530, 319160, 351076, 367034, 399740, 438845, 511060, 702152, 734068, 799480, 877690, 917585, 1022120, 1468136, 1755380, 1835170, 2018687, 3510760, 3670340, 4037374, 7340680, 8074748, 10093435, 16149496, 20186870, 40373740, 80747480]

約数ペア:

[(1, 80747480), (2, 40373740), (4, 20186870), (5, 16149496), (8, 10093435), (10, 8074748), (11, 7340680), (20, 4037374), (22, 3670340), (23, 3510760), (40, 2018687), (44, 1835170), (46, 1755380), (55, 1468136), (79, 1022120), (88, 917585), (92, 877690), (101, 799480), (110, 734068), (115, 702152), (158, 511060), (184, 438845), (202, 399740), (220, 367034), (230, 351076), (253, 319160), (316, 255530), (395, 204424), (404, 199870), (440, 183517), (460, 175538), (505, 159896), (506, 159580), (632, 127765), (790, 102212), (808, 99935), (869, 92920), (920, 87769), (1010, 79948), (1012, 79790), (1111, 72680), (1265, 63832), (1580, 51106), (1738, 46460), (1817, 44440), (2020, 39974), (2024, 39895), (2222, 36340), (2323, 34760), (2530, 31916), (3160, 25553), (3476, 23230), (3634, 22220), (4040, 19987), (4345, 18584), (4444, 18170), (4646, 17380), (5060, 15958), (5555, 14536), (6952, 11615), (7268, 11110), (7979, 10120), (8690, 9292), (8888, 9085)]