2121240720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{285113}}^1$

素因数の和:285160

約数の個数: 80

約数和(自身を含む): 6787994112

約数和(自身を除く): 4666753392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 285113, 570226, 855339, 1140452, 1425565, 1710678, 2280904, 2851130, 3421356, 4276695, 4561808, 5702260, 6842712, 8553390, 8838503, 11404520, 13685424, 17106780, 17677006, 22809040, 26515509, 34213560, 35354012, 44192515, 53031018, 68427120, 70708024, 88385030, 106062036, 132577545, 141416048, 176770060, 212124072, 265155090, 353540120, 424248144, 530310180, 707080240, 1060620360, 2121240720]

約数ペア:

[(1, 2121240720), (2, 1060620360), (3, 707080240), (4, 530310180), (5, 424248144), (6, 353540120), (8, 265155090), (10, 212124072), (12, 176770060), (15, 141416048), (16, 132577545), (20, 106062036), (24, 88385030), (30, 70708024), (31, 68427120), (40, 53031018), (48, 44192515), (60, 35354012), (62, 34213560), (80, 26515509), (93, 22809040), (120, 17677006), (124, 17106780), (155, 13685424), (186, 11404520), (240, 8838503), (248, 8553390), (310, 6842712), (372, 5702260), (465, 4561808), (496, 4276695), (620, 3421356), (744, 2851130), (930, 2280904), (1240, 1710678), (1488, 1425565), (1860, 1140452), (2480, 855339), (3720, 570226), (7440, 285113)]