74450000

素因数分解:

$2^4\times 5^5\times {\mathrm{1489}}^1$

素因数の和:1522

約数の個数: 60

約数和(自身を含む): 180418140

約数和(自身を除く): 105968140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 1489, 2000, 2500, 2978, 3125, 5000, 5956, 6250, 7445, 10000, 11912, 12500, 14890, 23824, 25000, 29780, 37225, 50000, 59560, 74450, 119120, 148900, 186125, 297800, 372250, 595600, 744500, 930625, 1489000, 1861250, 2978000, 3722500, 4653125, 7445000, 9306250, 14890000, 18612500, 37225000, 74450000]

約数ペア:

[(1, 74450000), (2, 37225000), (4, 18612500), (5, 14890000), (8, 9306250), (10, 7445000), (16, 4653125), (20, 3722500), (25, 2978000), (40, 1861250), (50, 1489000), (80, 930625), (100, 744500), (125, 595600), (200, 372250), (250, 297800), (400, 186125), (500, 148900), (625, 119120), (1000, 74450), (1250, 59560), (1489, 50000), (2000, 37225), (2500, 29780), (2978, 25000), (3125, 23824), (5000, 14890), (5956, 12500), (6250, 11912), (7445, 10000)]