64465648

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{309931}}^1$

素因数の和:309952

約数の個数: 20

約数和(自身を含む): 134510488

約数和(自身を除く): 70044840

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 309931, 619862, 1239724, 2479448, 4029103, 4958896, 8058206, 16116412, 32232824, 64465648]

約数ペア:

[(1, 64465648), (2, 32232824), (4, 16116412), (8, 8058206), (13, 4958896), (16, 4029103), (26, 2479448), (52, 1239724), (104, 619862), (208, 309931)]