20969640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1879}}^1$

素因数の和:1927

約数の個数: 96

約数和(自身を含む): 70387200

約数和(自身を除く): 49417560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1860, 1879, 2232, 2790, 3720, 3758, 5580, 5637, 7516, 9395, 11160, 11274, 15032, 16911, 18790, 22548, 28185, 33822, 37580, 45096, 56370, 58249, 67644, 75160, 84555, 112740, 116498, 135288, 169110, 174747, 225480, 232996, 291245, 338220, 349494, 465992, 524241, 582490, 676440, 698988, 873735, 1048482, 1164980, 1397976, 1747470, 2096964, 2329960, 2621205, 3494940, 4193928, 5242410, 6989880, 10484820, 20969640]

約数ペア:

[(1, 20969640), (2, 10484820), (3, 6989880), (4, 5242410), (5, 4193928), (6, 3494940), (8, 2621205), (9, 2329960), (10, 2096964), (12, 1747470), (15, 1397976), (18, 1164980), (20, 1048482), (24, 873735), (30, 698988), (31, 676440), (36, 582490), (40, 524241), (45, 465992), (60, 349494), (62, 338220), (72, 291245), (90, 232996), (93, 225480), (120, 174747), (124, 169110), (155, 135288), (180, 116498), (186, 112740), (248, 84555), (279, 75160), (310, 67644), (360, 58249), (372, 56370), (465, 45096), (558, 37580), (620, 33822), (744, 28185), (930, 22548), (1116, 18790), (1240, 16911), (1395, 15032), (1860, 11274), (1879, 11160), (2232, 9395), (2790, 7516), (3720, 5637), (3758, 5580)]