40799440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{653}}^1$

素因数の和:748

約数の個数: 80

約数和(自身を含む): 105100416

約数和(自身を除く): 64300976

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 568, 653, 710, 781, 880, 1136, 1306, 1420, 1562, 2612, 2840, 3124, 3265, 3905, 5224, 5680, 6248, 6530, 7183, 7810, 10448, 12496, 13060, 14366, 15620, 26120, 28732, 31240, 35915, 46363, 52240, 57464, 62480, 71830, 92726, 114928, 143660, 185452, 231815, 287320, 370904, 463630, 509993, 574640, 741808, 927260, 1019986, 1854520, 2039972, 2549965, 3709040, 4079944, 5099930, 8159888, 10199860, 20399720, 40799440]

約数ペア:

[(1, 40799440), (2, 20399720), (4, 10199860), (5, 8159888), (8, 5099930), (10, 4079944), (11, 3709040), (16, 2549965), (20, 2039972), (22, 1854520), (40, 1019986), (44, 927260), (55, 741808), (71, 574640), (80, 509993), (88, 463630), (110, 370904), (142, 287320), (176, 231815), (220, 185452), (284, 143660), (355, 114928), (440, 92726), (568, 71830), (653, 62480), (710, 57464), (781, 52240), (880, 46363), (1136, 35915), (1306, 31240), (1420, 28732), (1562, 26120), (2612, 15620), (2840, 14366), (3124, 13060), (3265, 12496), (3905, 10448), (5224, 7810), (5680, 7183), (6248, 6530)]