401648

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1931}}^1$

素因数の和:1952

約数の個数: 20

約数和(自身を含む): 838488

約数和(自身を除く): 436840

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1931, 3862, 7724, 15448, 25103, 30896, 50206, 100412, 200824, 401648]

約数ペア:

[(1, 401648), (2, 200824), (4, 100412), (8, 50206), (13, 30896), (16, 25103), (26, 15448), (52, 7724), (104, 3862), (208, 1931)]