18518780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 48771072

約数和(自身を除く): 30252292

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 31, 34, 35, 62, 68, 70, 85, 119, 124, 140, 155, 170, 217, 238, 251, 310, 340, 434, 476, 502, 527, 595, 620, 868, 1004, 1054, 1085, 1190, 1255, 1757, 2108, 2170, 2380, 2510, 2635, 3514, 3689, 4267, 4340, 5020, 5270, 7028, 7378, 7781, 8534, 8785, 10540, 14756, 15562, 17068, 17570, 18445, 21335, 29869, 31124, 35140, 36890, 38905, 42670, 54467, 59738, 73780, 77810, 85340, 108934, 119476, 132277, 149345, 155620, 217868, 264554, 272335, 298690, 529108, 544670, 597380, 661385, 925939, 1089340, 1322770, 1851878, 2645540, 3703756, 4629695, 9259390, 18518780]

約数ペア:

[(1, 18518780), (2, 9259390), (4, 4629695), (5, 3703756), (7, 2645540), (10, 1851878), (14, 1322770), (17, 1089340), (20, 925939), (28, 661385), (31, 597380), (34, 544670), (35, 529108), (62, 298690), (68, 272335), (70, 264554), (85, 217868), (119, 155620), (124, 149345), (140, 132277), (155, 119476), (170, 108934), (217, 85340), (238, 77810), (251, 73780), (310, 59738), (340, 54467), (434, 42670), (476, 38905), (502, 36890), (527, 35140), (595, 31124), (620, 29869), (868, 21335), (1004, 18445), (1054, 17570), (1085, 17068), (1190, 15562), (1255, 14756), (1757, 10540), (2108, 8785), (2170, 8534), (2380, 7781), (2510, 7378), (2635, 7028), (3514, 5270), (3689, 5020), (4267, 4340)]