660689900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{508223}}^1$

素因数の和:508250

約数の個数: 36

約数和(自身を含む): 1543984512

約数和(自身を除く): 883294612

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 508223, 1016446, 2032892, 2541115, 5082230, 6606899, 10164460, 12705575, 13213798, 25411150, 26427596, 33034495, 50822300, 66068990, 132137980, 165172475, 330344950, 660689900]

約数ペア:

[(1, 660689900), (2, 330344950), (4, 165172475), (5, 132137980), (10, 66068990), (13, 50822300), (20, 33034495), (25, 26427596), (26, 25411150), (50, 13213798), (52, 12705575), (65, 10164460), (100, 6606899), (130, 5082230), (260, 2541115), (325, 2032892), (650, 1016446), (1300, 508223)]