28035520

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1109}}^1$

素因数の和:1205

約数の個数: 56

約数和(自身を含む): 67665600

約数和(自身を除く): 39630080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1109, 1264, 1580, 2218, 2528, 3160, 4436, 5056, 5545, 6320, 8872, 11090, 12640, 17744, 22180, 25280, 35488, 44360, 70976, 87611, 88720, 175222, 177440, 350444, 354880, 438055, 700888, 876110, 1401776, 1752220, 2803552, 3504440, 5607104, 7008880, 14017760, 28035520]

約数ペア:

[(1, 28035520), (2, 14017760), (4, 7008880), (5, 5607104), (8, 3504440), (10, 2803552), (16, 1752220), (20, 1401776), (32, 876110), (40, 700888), (64, 438055), (79, 354880), (80, 350444), (158, 177440), (160, 175222), (316, 88720), (320, 87611), (395, 70976), (632, 44360), (790, 35488), (1109, 25280), (1264, 22180), (1580, 17744), (2218, 12640), (2528, 11090), (3160, 8872), (4436, 6320), (5056, 5545)]