121111120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1153}}^1$

素因数の和:1280

約数の個数: 80

約数和(自身を含む): 306511632

約数和(自身を除く): 185400512

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 101, 104, 130, 202, 208, 260, 404, 505, 520, 808, 1010, 1040, 1153, 1313, 1616, 2020, 2306, 2626, 4040, 4612, 5252, 5765, 6565, 8080, 9224, 10504, 11530, 13130, 14989, 18448, 21008, 23060, 26260, 29978, 46120, 52520, 59956, 74945, 92240, 105040, 116453, 119912, 149890, 232906, 239824, 299780, 465812, 582265, 599560, 931624, 1164530, 1199120, 1513889, 1863248, 2329060, 3027778, 4658120, 6055556, 7569445, 9316240, 12111112, 15138890, 24222224, 30277780, 60555560, 121111120]

約数ペア:

[(1, 121111120), (2, 60555560), (4, 30277780), (5, 24222224), (8, 15138890), (10, 12111112), (13, 9316240), (16, 7569445), (20, 6055556), (26, 4658120), (40, 3027778), (52, 2329060), (65, 1863248), (80, 1513889), (101, 1199120), (104, 1164530), (130, 931624), (202, 599560), (208, 582265), (260, 465812), (404, 299780), (505, 239824), (520, 232906), (808, 149890), (1010, 119912), (1040, 116453), (1153, 105040), (1313, 92240), (1616, 74945), (2020, 59956), (2306, 52520), (2626, 46120), (4040, 29978), (4612, 26260), (5252, 23060), (5765, 21008), (6565, 18448), (8080, 14989), (9224, 13130), (10504, 11530)]