18067280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{419}}^1$

素因数の和:457

約数の個数: 120

約数和(自身を含む): 53434080

約数和(自身を除く): 35366800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 176, 196, 220, 245, 280, 308, 385, 392, 419, 440, 490, 539, 560, 616, 770, 784, 838, 880, 980, 1078, 1232, 1540, 1676, 1960, 2095, 2156, 2695, 2933, 3080, 3352, 3920, 4190, 4312, 4609, 5390, 5866, 6160, 6704, 8380, 8624, 9218, 10780, 11732, 14665, 16760, 18436, 20531, 21560, 23045, 23464, 29330, 32263, 33520, 36872, 41062, 43120, 46090, 46928, 58660, 64526, 73744, 82124, 92180, 102655, 117320, 129052, 161315, 164248, 184360, 205310, 225841, 234640, 258104, 322630, 328496, 368720, 410620, 451682, 516208, 645260, 821240, 903364, 1129205, 1290520, 1642480, 1806728, 2258410, 2581040, 3613456, 4516820, 9033640, 18067280]

約数ペア:

[(1, 18067280), (2, 9033640), (4, 4516820), (5, 3613456), (7, 2581040), (8, 2258410), (10, 1806728), (11, 1642480), (14, 1290520), (16, 1129205), (20, 903364), (22, 821240), (28, 645260), (35, 516208), (40, 451682), (44, 410620), (49, 368720), (55, 328496), (56, 322630), (70, 258104), (77, 234640), (80, 225841), (88, 205310), (98, 184360), (110, 164248), (112, 161315), (140, 129052), (154, 117320), (176, 102655), (196, 92180), (220, 82124), (245, 73744), (280, 64526), (308, 58660), (385, 46928), (392, 46090), (419, 43120), (440, 41062), (490, 36872), (539, 33520), (560, 32263), (616, 29330), (770, 23464), (784, 23045), (838, 21560), (880, 20531), (980, 18436), (1078, 16760), (1232, 14665), (1540, 11732), (1676, 10780), (1960, 9218), (2095, 8624), (2156, 8380), (2695, 6704), (2933, 6160), (3080, 5866), (3352, 5390), (3920, 4609), (4190, 4312)]