28080

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1$

素因数の和:35

約数の個数: 80

約数和(自身を含む): 104160

約数和(自身を除く): 76080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 180, 195, 208, 216, 234, 240, 260, 270, 312, 351, 360, 390, 432, 468, 520, 540, 585, 624, 702, 720, 780, 936, 1040, 1080, 1170, 1404, 1560, 1755, 1872, 2160, 2340, 2808, 3120, 3510, 4680, 5616, 7020, 9360, 14040, 28080]

約数ペア:

[(1, 28080), (2, 14040), (3, 9360), (4, 7020), (5, 5616), (6, 4680), (8, 3510), (9, 3120), (10, 2808), (12, 2340), (13, 2160), (15, 1872), (16, 1755), (18, 1560), (20, 1404), (24, 1170), (26, 1080), (27, 1040), (30, 936), (36, 780), (39, 720), (40, 702), (45, 624), (48, 585), (52, 540), (54, 520), (60, 468), (65, 432), (72, 390), (78, 360), (80, 351), (90, 312), (104, 270), (108, 260), (117, 240), (120, 234), (130, 216), (135, 208), (144, 195), (156, 180)]