25285780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{7481}}^1$

素因数の和:7516

約数の個数: 36

約数和(自身を含む): 57506652

約数和(自身を除く): 32220872

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 7481, 14962, 29924, 37405, 74810, 97253, 149620, 194506, 389012, 486265, 972530, 1264289, 1945060, 2528578, 5057156, 6321445, 12642890, 25285780]

約数ペア:

[(1, 25285780), (2, 12642890), (4, 6321445), (5, 5057156), (10, 2528578), (13, 1945060), (20, 1264289), (26, 972530), (52, 486265), (65, 389012), (130, 194506), (169, 149620), (260, 97253), (338, 74810), (676, 37405), (845, 29924), (1690, 14962), (3380, 7481)]