249920

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1$

素因数の和:99

約数の個数: 56

約数和(自身を含む): 658368

約数和(自身を除く): 408448

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 71, 80, 88, 110, 142, 160, 176, 220, 284, 320, 352, 355, 440, 568, 704, 710, 781, 880, 1136, 1420, 1562, 1760, 2272, 2840, 3124, 3520, 3905, 4544, 5680, 6248, 7810, 11360, 12496, 15620, 22720, 24992, 31240, 49984, 62480, 124960, 249920]

約数ペア:

[(1, 249920), (2, 124960), (4, 62480), (5, 49984), (8, 31240), (10, 24992), (11, 22720), (16, 15620), (20, 12496), (22, 11360), (32, 7810), (40, 6248), (44, 5680), (55, 4544), (64, 3905), (71, 3520), (80, 3124), (88, 2840), (110, 2272), (142, 1760), (160, 1562), (176, 1420), (220, 1136), (284, 880), (320, 781), (352, 710), (355, 704), (440, 568)]