2600000

素因数分解:

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

素因数の和:50

約数の個数: 84

約数和(自身を含む): 6944868

約数和(自身を除く): 4344868

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 260, 320, 325, 400, 416, 500, 520, 625, 650, 800, 832, 1000, 1040, 1250, 1300, 1600, 1625, 2000, 2080, 2500, 2600, 3125, 3250, 4000, 4160, 5000, 5200, 6250, 6500, 8000, 8125, 10000, 10400, 12500, 13000, 16250, 20000, 20800, 25000, 26000, 32500, 40000, 40625, 50000, 52000, 65000, 81250, 100000, 104000, 130000, 162500, 200000, 260000, 325000, 520000, 650000, 1300000, 2600000]

約数ペア:

[(1, 2600000), (2, 1300000), (4, 650000), (5, 520000), (8, 325000), (10, 260000), (13, 200000), (16, 162500), (20, 130000), (25, 104000), (26, 100000), (32, 81250), (40, 65000), (50, 52000), (52, 50000), (64, 40625), (65, 40000), (80, 32500), (100, 26000), (104, 25000), (125, 20800), (130, 20000), (160, 16250), (200, 13000), (208, 12500), (250, 10400), (260, 10000), (320, 8125), (325, 8000), (400, 6500), (416, 6250), (500, 5200), (520, 5000), (625, 4160), (650, 4000), (800, 3250), (832, 3125), (1000, 2600), (1040, 2500), (1250, 2080), (1300, 2000), (1600, 1625)]