25860820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{787}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 57189888

約数和(自身を除く): 31329068

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 106, 124, 155, 212, 265, 310, 530, 620, 787, 1060, 1574, 1643, 3148, 3286, 3935, 6572, 7870, 8215, 15740, 16430, 24397, 32860, 41711, 48794, 83422, 97588, 121985, 166844, 208555, 243970, 417110, 487940, 834220, 1293041, 2586082, 5172164, 6465205, 12930410, 25860820]

約数ペア:

[(1, 25860820), (2, 12930410), (4, 6465205), (5, 5172164), (10, 2586082), (20, 1293041), (31, 834220), (53, 487940), (62, 417110), (106, 243970), (124, 208555), (155, 166844), (212, 121985), (265, 97588), (310, 83422), (530, 48794), (620, 41711), (787, 32860), (1060, 24397), (1574, 16430), (1643, 15740), (3148, 8215), (3286, 7870), (3935, 6572)]