15720720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2113}}^1$

素因数の和:2160

約数の個数: 80

約数和(自身を含む): 50330112

約数和(自身を除く): 34609392

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, 2113, 2480, 3720, 4226, 6339, 7440, 8452, 10565, 12678, 16904, 21130, 25356, 31695, 33808, 42260, 50712, 63390, 65503, 84520, 101424, 126780, 131006, 169040, 196509, 253560, 262012, 327515, 393018, 507120, 524024, 655030, 786036, 982545, 1048048, 1310060, 1572072, 1965090, 2620120, 3144144, 3930180, 5240240, 7860360, 15720720]

約数ペア:

[(1, 15720720), (2, 7860360), (3, 5240240), (4, 3930180), (5, 3144144), (6, 2620120), (8, 1965090), (10, 1572072), (12, 1310060), (15, 1048048), (16, 982545), (20, 786036), (24, 655030), (30, 524024), (31, 507120), (40, 393018), (48, 327515), (60, 262012), (62, 253560), (80, 196509), (93, 169040), (120, 131006), (124, 126780), (155, 101424), (186, 84520), (240, 65503), (248, 63390), (310, 50712), (372, 42260), (465, 33808), (496, 31695), (620, 25356), (744, 21130), (930, 16904), (1240, 12678), (1488, 10565), (1860, 8452), (2113, 7440), (2480, 6339), (3720, 4226)]