18781840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3049}}^1$

素因数の和:3080

約数の個数: 80

約数和(自身を含む): 54460800

約数和(自身を除く): 35678960

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3049, 3080, 6098, 6160, 12196, 15245, 21343, 24392, 30490, 33539, 42686, 48784, 60980, 67078, 85372, 106715, 121960, 134156, 167695, 170744, 213430, 234773, 243920, 268312, 335390, 341488, 426860, 469546, 536624, 670780, 853720, 939092, 1173865, 1341560, 1707440, 1878184, 2347730, 2683120, 3756368, 4695460, 9390920, 18781840]

約数ペア:

[(1, 18781840), (2, 9390920), (4, 4695460), (5, 3756368), (7, 2683120), (8, 2347730), (10, 1878184), (11, 1707440), (14, 1341560), (16, 1173865), (20, 939092), (22, 853720), (28, 670780), (35, 536624), (40, 469546), (44, 426860), (55, 341488), (56, 335390), (70, 268312), (77, 243920), (80, 234773), (88, 213430), (110, 170744), (112, 167695), (140, 134156), (154, 121960), (176, 106715), (220, 85372), (280, 67078), (308, 60980), (385, 48784), (440, 42686), (560, 33539), (616, 30490), (770, 24392), (880, 21343), (1232, 15245), (1540, 12196), (3049, 6160), (3080, 6098)]