645664825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{15643}}^1$

素因数の和:15793

約数の個数: 24

約数和(自身を含む): 869055488

約数和(自身を除く): 223390663

約数列:

[1, 5, 13, 25, 65, 127, 325, 635, 1651, 3175, 8255, 15643, 41275, 78215, 203359, 391075, 1016795, 1986661, 5083975, 9933305, 25826593, 49666525, 129132965, 645664825]

約数ペア:

[(1, 645664825), (5, 129132965), (13, 49666525), (25, 25826593), (65, 9933305), (127, 5083975), (325, 1986661), (635, 1016795), (1651, 391075), (3175, 203359), (8255, 78215), (15643, 41275)]