8815000

素因数分解:

$2^3\times 5^4\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:110

約数の個数: 80

約数和(自身を含む): 21649320

約数和(自身を除く): 12834320

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 43, 50, 82, 86, 100, 125, 164, 172, 200, 205, 215, 250, 328, 344, 410, 430, 500, 625, 820, 860, 1000, 1025, 1075, 1250, 1640, 1720, 1763, 2050, 2150, 2500, 3526, 4100, 4300, 5000, 5125, 5375, 7052, 8200, 8600, 8815, 10250, 10750, 14104, 17630, 20500, 21500, 25625, 26875, 35260, 41000, 43000, 44075, 51250, 53750, 70520, 88150, 102500, 107500, 176300, 205000, 215000, 220375, 352600, 440750, 881500, 1101875, 1763000, 2203750, 4407500, 8815000]

約数ペア:

[(1, 8815000), (2, 4407500), (4, 2203750), (5, 1763000), (8, 1101875), (10, 881500), (20, 440750), (25, 352600), (40, 220375), (41, 215000), (43, 205000), (50, 176300), (82, 107500), (86, 102500), (100, 88150), (125, 70520), (164, 53750), (172, 51250), (200, 44075), (205, 43000), (215, 41000), (250, 35260), (328, 26875), (344, 25625), (410, 21500), (430, 20500), (500, 17630), (625, 14104), (820, 10750), (860, 10250), (1000, 8815), (1025, 8600), (1075, 8200), (1250, 7052), (1640, 5375), (1720, 5125), (1763, 5000), (2050, 4300), (2150, 4100), (2500, 3526)]