28190240

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13553}}^1$

素因数の和:13581

約数の個数: 48

約数和(自身を含む): 71727768

約数和(自身を除く): 43537528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 13553, 27106, 54212, 67765, 108424, 135530, 176189, 216848, 271060, 352378, 433696, 542120, 704756, 880945, 1084240, 1409512, 1761890, 2168480, 2819024, 3523780, 5638048, 7047560, 14095120, 28190240]

約数ペア:

[(1, 28190240), (2, 14095120), (4, 7047560), (5, 5638048), (8, 3523780), (10, 2819024), (13, 2168480), (16, 1761890), (20, 1409512), (26, 1084240), (32, 880945), (40, 704756), (52, 542120), (65, 433696), (80, 352378), (104, 271060), (130, 216848), (160, 176189), (208, 135530), (260, 108424), (416, 67765), (520, 54212), (1040, 27106), (2080, 13553)]