31240000

素因数分解:

$2^6\times 5^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1$

素因数の和:114

約数の個数: 140

約数和(自身を含む): 85697568

約数和(自身を除く): 54457568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 71, 80, 88, 100, 110, 125, 142, 160, 176, 200, 220, 250, 275, 284, 320, 352, 355, 400, 440, 500, 550, 568, 625, 704, 710, 781, 800, 880, 1000, 1100, 1136, 1250, 1375, 1420, 1562, 1600, 1760, 1775, 2000, 2200, 2272, 2500, 2750, 2840, 3124, 3520, 3550, 3905, 4000, 4400, 4544, 5000, 5500, 5680, 6248, 6875, 7100, 7810, 8000, 8800, 8875, 10000, 11000, 11360, 12496, 13750, 14200, 15620, 17600, 17750, 19525, 20000, 22000, 22720, 24992, 27500, 28400, 31240, 35500, 39050, 40000, 44000, 44375, 49984, 55000, 56800, 62480, 71000, 78100, 88000, 88750, 97625, 110000, 113600, 124960, 142000, 156200, 177500, 195250, 220000, 249920, 284000, 312400, 355000, 390500, 440000, 488125, 568000, 624800, 710000, 781000, 976250, 1249600, 1420000, 1562000, 1952500, 2840000, 3124000, 3905000, 6248000, 7810000, 15620000, 31240000]

約数ペア:

[(1, 31240000), (2, 15620000), (4, 7810000), (5, 6248000), (8, 3905000), (10, 3124000), (11, 2840000), (16, 1952500), (20, 1562000), (22, 1420000), (25, 1249600), (32, 976250), (40, 781000), (44, 710000), (50, 624800), (55, 568000), (64, 488125), (71, 440000), (80, 390500), (88, 355000), (100, 312400), (110, 284000), (125, 249920), (142, 220000), (160, 195250), (176, 177500), (200, 156200), (220, 142000), (250, 124960), (275, 113600), (284, 110000), (320, 97625), (352, 88750), (355, 88000), (400, 78100), (440, 71000), (500, 62480), (550, 56800), (568, 55000), (625, 49984), (704, 44375), (710, 44000), (781, 40000), (800, 39050), (880, 35500), (1000, 31240), (1100, 28400), (1136, 27500), (1250, 24992), (1375, 22720), (1420, 22000), (1562, 20000), (1600, 19525), (1760, 17750), (1775, 17600), (2000, 15620), (2200, 14200), (2272, 13750), (2500, 12496), (2750, 11360), (2840, 11000), (3124, 10000), (3520, 8875), (3550, 8800), (3905, 8000), (4000, 7810), (4400, 7100), (4544, 6875), (5000, 6248), (5500, 5680)]