3250000

素因数分解:

$2^4\times 5^6\times {\mathrm{13}}^1$

素因数の和:51

約数の個数: 70

約数和(自身を含む): 8476454

約数和(自身を除く): 5226454

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 625, 650, 1000, 1040, 1250, 1300, 1625, 2000, 2500, 2600, 3125, 3250, 5000, 5200, 6250, 6500, 8125, 10000, 12500, 13000, 15625, 16250, 25000, 26000, 31250, 32500, 40625, 50000, 62500, 65000, 81250, 125000, 130000, 162500, 203125, 250000, 325000, 406250, 650000, 812500, 1625000, 3250000]

約数ペア:

[(1, 3250000), (2, 1625000), (4, 812500), (5, 650000), (8, 406250), (10, 325000), (13, 250000), (16, 203125), (20, 162500), (25, 130000), (26, 125000), (40, 81250), (50, 65000), (52, 62500), (65, 50000), (80, 40625), (100, 32500), (104, 31250), (125, 26000), (130, 25000), (200, 16250), (208, 15625), (250, 13000), (260, 12500), (325, 10000), (400, 8125), (500, 6500), (520, 6250), (625, 5200), (650, 5000), (1000, 3250), (1040, 3125), (1250, 2600), (1300, 2500), (1625, 2000)]