28157580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{14221}}^1$

素因数の和:14247

約数の個数: 72

約数和(自身を含む): 93182544

約数和(自身を除く): 65024964

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 14221, 28442, 42663, 56884, 71105, 85326, 127989, 142210, 156431, 170652, 213315, 255978, 284420, 312862, 426630, 469293, 511956, 625724, 639945, 782155, 853260, 938586, 1279890, 1407879, 1564310, 1877172, 2346465, 2559780, 2815758, 3128620, 4692930, 5631516, 7039395, 9385860, 14078790, 28157580]

約数ペア:

[(1, 28157580), (2, 14078790), (3, 9385860), (4, 7039395), (5, 5631516), (6, 4692930), (9, 3128620), (10, 2815758), (11, 2559780), (12, 2346465), (15, 1877172), (18, 1564310), (20, 1407879), (22, 1279890), (30, 938586), (33, 853260), (36, 782155), (44, 639945), (45, 625724), (55, 511956), (60, 469293), (66, 426630), (90, 312862), (99, 284420), (110, 255978), (132, 213315), (165, 170652), (180, 156431), (198, 142210), (220, 127989), (330, 85326), (396, 71105), (495, 56884), (660, 42663), (990, 28442), (1980, 14221)]