21681360

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{30113}}^1$

素因数の和:30132

約数の個数: 60

約数和(自身を含む): 72815652

約数和(自身を除く): 51134292

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 30113, 60226, 90339, 120452, 150565, 180678, 240904, 271017, 301130, 361356, 451695, 481808, 542034, 602260, 722712, 903390, 1084068, 1204520, 1355085, 1445424, 1806780, 2168136, 2409040, 2710170, 3613560, 4336272, 5420340, 7227120, 10840680, 21681360]

約数ペア:

[(1, 21681360), (2, 10840680), (3, 7227120), (4, 5420340), (5, 4336272), (6, 3613560), (8, 2710170), (9, 2409040), (10, 2168136), (12, 1806780), (15, 1445424), (16, 1355085), (18, 1204520), (20, 1084068), (24, 903390), (30, 722712), (36, 602260), (40, 542034), (45, 481808), (48, 451695), (60, 361356), (72, 301130), (80, 271017), (90, 240904), (120, 180678), (144, 150565), (180, 120452), (240, 90339), (360, 60226), (720, 30113)]