1155440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:138

約数の個数: 80

約数和(自身を含む): 3187296

約数和(自身を除く): 2031856

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 101, 104, 110, 130, 143, 176, 202, 208, 220, 260, 286, 404, 440, 505, 520, 572, 715, 808, 880, 1010, 1040, 1111, 1144, 1313, 1430, 1616, 2020, 2222, 2288, 2626, 2860, 4040, 4444, 5252, 5555, 5720, 6565, 8080, 8888, 10504, 11110, 11440, 13130, 14443, 17776, 21008, 22220, 26260, 28886, 44440, 52520, 57772, 72215, 88880, 105040, 115544, 144430, 231088, 288860, 577720, 1155440]

約数ペア:

[(1, 1155440), (2, 577720), (4, 288860), (5, 231088), (8, 144430), (10, 115544), (11, 105040), (13, 88880), (16, 72215), (20, 57772), (22, 52520), (26, 44440), (40, 28886), (44, 26260), (52, 22220), (55, 21008), (65, 17776), (80, 14443), (88, 13130), (101, 11440), (104, 11110), (110, 10504), (130, 8888), (143, 8080), (176, 6565), (202, 5720), (208, 5555), (220, 5252), (260, 4444), (286, 4040), (404, 2860), (440, 2626), (505, 2288), (520, 2222), (572, 2020), (715, 1616), (808, 1430), (880, 1313), (1010, 1144), (1040, 1111)]