31364000

素因数分解:

$2^5\times 5^3\times {\mathrm{7841}}^1$

素因数の和:7866

約数の個数: 48

約数和(自身を含む): 77071176

約数和(自身を除く): 45707176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 7841, 15682, 31364, 39205, 62728, 78410, 125456, 156820, 196025, 250912, 313640, 392050, 627280, 784100, 980125, 1254560, 1568200, 1960250, 3136400, 3920500, 6272800, 7841000, 15682000, 31364000]

約数ペア:

[(1, 31364000), (2, 15682000), (4, 7841000), (5, 6272800), (8, 3920500), (10, 3136400), (16, 1960250), (20, 1568200), (25, 1254560), (32, 980125), (40, 784100), (50, 627280), (80, 392050), (100, 313640), (125, 250912), (160, 196025), (200, 156820), (250, 125456), (400, 78410), (500, 62728), (800, 39205), (1000, 31364), (2000, 15682), (4000, 7841)]