31552400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:201

約数の個数: 120

約数和(自身を含む): 84691008

約数和(自身を除く): 53138608

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 71, 80, 88, 100, 101, 110, 142, 176, 200, 202, 220, 275, 284, 355, 400, 404, 440, 505, 550, 568, 710, 781, 808, 880, 1010, 1100, 1111, 1136, 1420, 1562, 1616, 1775, 2020, 2200, 2222, 2525, 2840, 3124, 3550, 3905, 4040, 4400, 4444, 5050, 5555, 5680, 6248, 7100, 7171, 7810, 8080, 8888, 10100, 11110, 12496, 14200, 14342, 15620, 17776, 19525, 20200, 22220, 27775, 28400, 28684, 31240, 35855, 39050, 40400, 44440, 55550, 57368, 62480, 71710, 78100, 78881, 88880, 111100, 114736, 143420, 156200, 157762, 179275, 222200, 286840, 312400, 315524, 358550, 394405, 444400, 573680, 631048, 717100, 788810, 1262096, 1434200, 1577620, 1972025, 2868400, 3155240, 3944050, 6310480, 7888100, 15776200, 31552400]

約数ペア:

[(1, 31552400), (2, 15776200), (4, 7888100), (5, 6310480), (8, 3944050), (10, 3155240), (11, 2868400), (16, 1972025), (20, 1577620), (22, 1434200), (25, 1262096), (40, 788810), (44, 717100), (50, 631048), (55, 573680), (71, 444400), (80, 394405), (88, 358550), (100, 315524), (101, 312400), (110, 286840), (142, 222200), (176, 179275), (200, 157762), (202, 156200), (220, 143420), (275, 114736), (284, 111100), (355, 88880), (400, 78881), (404, 78100), (440, 71710), (505, 62480), (550, 57368), (568, 55550), (710, 44440), (781, 40400), (808, 39050), (880, 35855), (1010, 31240), (1100, 28684), (1111, 28400), (1136, 27775), (1420, 22220), (1562, 20200), (1616, 19525), (1775, 17776), (2020, 15620), (2200, 14342), (2222, 14200), (2525, 12496), (2840, 11110), (3124, 10100), (3550, 8888), (3905, 8080), (4040, 7810), (4400, 7171), (4444, 7100), (5050, 6248), (5555, 5680)]