28205440

素因数分解:

$2^7\times 5^1\times {\mathrm{44071}}^1$

素因数の和:44090

約数の個数: 32

約数和(自身を含む): 67430160

約数和(自身を除く): 39224720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 44071, 88142, 176284, 220355, 352568, 440710, 705136, 881420, 1410272, 1762840, 2820544, 3525680, 5641088, 7051360, 14102720, 28205440]

約数ペア:

[(1, 28205440), (2, 14102720), (4, 7051360), (5, 5641088), (8, 3525680), (10, 2820544), (16, 1762840), (20, 1410272), (32, 881420), (40, 705136), (64, 440710), (80, 352568), (128, 220355), (160, 176284), (320, 88142), (640, 44071)]