90880

素因数分解:

$2^8\times 5^1\times {\mathrm{71}}^1$

素因数の和:92

約数の個数: 36

約数和(自身を含む): 220752

約数和(自身を除く): 129872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 355, 568, 640, 710, 1136, 1280, 1420, 2272, 2840, 4544, 5680, 9088, 11360, 18176, 22720, 45440, 90880]

約数ペア:

[(1, 90880), (2, 45440), (4, 22720), (5, 18176), (8, 11360), (10, 9088), (16, 5680), (20, 4544), (32, 2840), (40, 2272), (64, 1420), (71, 1280), (80, 1136), (128, 710), (142, 640), (160, 568), (256, 355), (284, 320)]