90028280

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{7237}}^1$

素因数の和:7559

約数の個数: 32

約数和(自身を含む): 203243040

約数和(自身を除く): 113214760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 6220, 7237, 12440, 14474, 28948, 36185, 57896, 72370, 144740, 289480, 2250707, 4501414, 9002828, 11253535, 18005656, 22507070, 45014140, 90028280]

約数ペア:

[(1, 90028280), (2, 45014140), (4, 22507070), (5, 18005656), (8, 11253535), (10, 9002828), (20, 4501414), (40, 2250707), (311, 289480), (622, 144740), (1244, 72370), (1555, 57896), (2488, 36185), (3110, 28948), (6220, 14474), (7237, 12440)]