25578800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{4919}}^1$

素因数の和:4950

約数の個数: 60

約数和(自身を含む): 66193680

約数和(自身を除く): 40614880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 4919, 5200, 9838, 19676, 24595, 39352, 49190, 63947, 78704, 98380, 122975, 127894, 196760, 245950, 255788, 319735, 393520, 491900, 511576, 639470, 983800, 1023152, 1278940, 1598675, 1967600, 2557880, 3197350, 5115760, 6394700, 12789400, 25578800]

約数ペア:

[(1, 25578800), (2, 12789400), (4, 6394700), (5, 5115760), (8, 3197350), (10, 2557880), (13, 1967600), (16, 1598675), (20, 1278940), (25, 1023152), (26, 983800), (40, 639470), (50, 511576), (52, 491900), (65, 393520), (80, 319735), (100, 255788), (104, 245950), (130, 196760), (200, 127894), (208, 122975), (260, 98380), (325, 78704), (400, 63947), (520, 49190), (650, 39352), (1040, 24595), (1300, 19676), (2600, 9838), (4919, 5200)]