20121622360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{647}}^1\times {\mathrm{1019}}^1$

素因数の和:1793

約数の個数: 128

約数和(自身を含む): 52348032000

約数和(自身を除く): 32226409640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 545, 647, 763, 872, 1019, 1090, 1294, 1526, 2038, 2180, 2588, 3052, 3235, 3815, 4076, 4360, 4529, 5095, 5176, 6104, 6470, 7133, 7630, 8152, 9058, 10190, 12940, 14266, 15260, 18116, 20380, 22645, 25880, 28532, 30520, 35665, 36232, 40760, 45290, 57064, 70523, 71330, 90580, 111071, 141046, 142660, 181160, 222142, 282092, 285320, 352615, 444284, 493661, 555355, 564184, 659293, 705230, 777497, 888568, 987322, 1110710, 1318586, 1410460, 1554994, 1974644, 2221420, 2468305, 2637172, 2820920, 3109988, 3296465, 3887485, 3949288, 4442840, 4615051, 4936610, 5274344, 6219976, 6592930, 7774970, 9230102, 9873220, 13185860, 15549940, 18460204, 19746440, 23075255, 26371720, 31099880, 36920408, 46150510, 71862937, 92301020, 143725874, 184602040, 287451748, 359314685, 503040559, 574903496, 718629370, 1006081118, 1437258740, 2012162236, 2515202795, 2874517480, 4024324472, 5030405590, 10060811180, 20121622360]

約数ペア:

[(1, 20121622360), (2, 10060811180), (4, 5030405590), (5, 4024324472), (7, 2874517480), (8, 2515202795), (10, 2012162236), (14, 1437258740), (20, 1006081118), (28, 718629370), (35, 574903496), (40, 503040559), (56, 359314685), (70, 287451748), (109, 184602040), (140, 143725874), (218, 92301020), (280, 71862937), (436, 46150510), (545, 36920408), (647, 31099880), (763, 26371720), (872, 23075255), (1019, 19746440), (1090, 18460204), (1294, 15549940), (1526, 13185860), (2038, 9873220), (2180, 9230102), (2588, 7774970), (3052, 6592930), (3235, 6219976), (3815, 5274344), (4076, 4936610), (4360, 4615051), (4529, 4442840), (5095, 3949288), (5176, 3887485), (6104, 3296465), (6470, 3109988), (7133, 2820920), (7630, 2637172), (8152, 2468305), (9058, 2221420), (10190, 1974644), (12940, 1554994), (14266, 1410460), (15260, 1318586), (18116, 1110710), (20380, 987322), (22645, 888568), (25880, 777497), (28532, 705230), (30520, 659293), (35665, 564184), (36232, 555355), (40760, 493661), (45290, 444284), (57064, 352615), (70523, 285320), (71330, 282092), (90580, 222142), (111071, 181160), (141046, 142660)]