28785680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4673}}^1$

素因数の和:4704

約数の個数: 80

約数和(自身を含む): 83458944

約数和(自身を除く): 54673264

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 4673, 6160, 9346, 18692, 23365, 32711, 37384, 46730, 51403, 65422, 74768, 93460, 102806, 130844, 163555, 186920, 205612, 257015, 261688, 327110, 359821, 373840, 411224, 514030, 523376, 654220, 719642, 822448, 1028060, 1308440, 1439284, 1799105, 2056120, 2616880, 2878568, 3598210, 4112240, 5757136, 7196420, 14392840, 28785680]

約数ペア:

[(1, 28785680), (2, 14392840), (4, 7196420), (5, 5757136), (7, 4112240), (8, 3598210), (10, 2878568), (11, 2616880), (14, 2056120), (16, 1799105), (20, 1439284), (22, 1308440), (28, 1028060), (35, 822448), (40, 719642), (44, 654220), (55, 523376), (56, 514030), (70, 411224), (77, 373840), (80, 359821), (88, 327110), (110, 261688), (112, 257015), (140, 205612), (154, 186920), (176, 163555), (220, 130844), (280, 102806), (308, 93460), (385, 74768), (440, 65422), (560, 51403), (616, 46730), (770, 37384), (880, 32711), (1232, 23365), (1540, 18692), (3080, 9346), (4673, 6160)]