31090000

素因数分解:

$2^4\times 5^4\times {\mathrm{3109}}^1$

素因数の和:3137

約数の個数: 50

約数和(自身を含む): 75296210

約数和(自身を除く): 44206210

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 3109, 5000, 6218, 10000, 12436, 15545, 24872, 31090, 49744, 62180, 77725, 124360, 155450, 248720, 310900, 388625, 621800, 777250, 1243600, 1554500, 1943125, 3109000, 3886250, 6218000, 7772500, 15545000, 31090000]

約数ペア:

[(1, 31090000), (2, 15545000), (4, 7772500), (5, 6218000), (8, 3886250), (10, 3109000), (16, 1943125), (20, 1554500), (25, 1243600), (40, 777250), (50, 621800), (80, 388625), (100, 310900), (125, 248720), (200, 155450), (250, 124360), (400, 77725), (500, 62180), (625, 49744), (1000, 31090), (1250, 24872), (2000, 15545), (2500, 12436), (3109, 10000), (5000, 6218)]