28578440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64951}}^1$

素因数の和:64973

約数の個数: 32

約数和(自身を含む): 70148160

約数和(自身を除く): 41569720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64951, 129902, 259804, 324755, 519608, 649510, 714461, 1299020, 1428922, 2598040, 2857844, 3572305, 5715688, 7144610, 14289220, 28578440]

約数ペア:

[(1, 28578440), (2, 14289220), (4, 7144610), (5, 5715688), (8, 3572305), (10, 2857844), (11, 2598040), (20, 1428922), (22, 1299020), (40, 714461), (44, 649510), (55, 519608), (88, 324755), (110, 259804), (220, 129902), (440, 64951)]