12745480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 31752000

約数和(自身を除く): 19006520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 83, 88, 110, 166, 220, 332, 349, 415, 440, 664, 698, 830, 913, 1396, 1660, 1745, 1826, 2792, 3320, 3490, 3652, 3839, 4565, 6980, 7304, 7678, 9130, 13960, 15356, 18260, 19195, 28967, 30712, 36520, 38390, 57934, 76780, 115868, 144835, 153560, 231736, 289670, 318637, 579340, 637274, 1158680, 1274548, 1593185, 2549096, 3186370, 6372740, 12745480]

約数ペア:

[(1, 12745480), (2, 6372740), (4, 3186370), (5, 2549096), (8, 1593185), (10, 1274548), (11, 1158680), (20, 637274), (22, 579340), (40, 318637), (44, 289670), (55, 231736), (83, 153560), (88, 144835), (110, 115868), (166, 76780), (220, 57934), (332, 38390), (349, 36520), (415, 30712), (440, 28967), (664, 19195), (698, 18260), (830, 15356), (913, 13960), (1396, 9130), (1660, 7678), (1745, 7304), (1826, 6980), (2792, 4565), (3320, 3839), (3490, 3652)]