25856680

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10597}}^1$

素因数の和:10669

約数の個数: 32

約数和(自身を含む): 59136840

約数和(自身を除く): 33280160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 10597, 21194, 42388, 52985, 84776, 105970, 211940, 423880, 646417, 1292834, 2585668, 3232085, 5171336, 6464170, 12928340, 25856680]

約数ペア:

[(1, 25856680), (2, 12928340), (4, 6464170), (5, 5171336), (8, 3232085), (10, 2585668), (20, 1292834), (40, 646417), (61, 423880), (122, 211940), (244, 105970), (305, 84776), (488, 52985), (610, 42388), (1220, 21194), (2440, 10597)]