20668368

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{449}}^1$

素因数の和:604

約数の個数: 80

約数和(自身を含む): 61603200

約数和(自身を除く): 40934832

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 137, 168, 274, 336, 411, 449, 548, 822, 898, 959, 1096, 1347, 1644, 1796, 1918, 2192, 2694, 2877, 3143, 3288, 3592, 3836, 5388, 5754, 6286, 6576, 7184, 7672, 9429, 10776, 11508, 12572, 15344, 18858, 21552, 23016, 25144, 37716, 46032, 50288, 61513, 75432, 123026, 150864, 184539, 246052, 369078, 430591, 492104, 738156, 861182, 984208, 1291773, 1476312, 1722364, 2583546, 2952624, 3444728, 5167092, 6889456, 10334184, 20668368]

約数ペア:

[(1, 20668368), (2, 10334184), (3, 6889456), (4, 5167092), (6, 3444728), (7, 2952624), (8, 2583546), (12, 1722364), (14, 1476312), (16, 1291773), (21, 984208), (24, 861182), (28, 738156), (42, 492104), (48, 430591), (56, 369078), (84, 246052), (112, 184539), (137, 150864), (168, 123026), (274, 75432), (336, 61513), (411, 50288), (449, 46032), (548, 37716), (822, 25144), (898, 23016), (959, 21552), (1096, 18858), (1347, 15344), (1644, 12572), (1796, 11508), (1918, 10776), (2192, 9429), (2694, 7672), (2877, 7184), (3143, 6576), (3288, 6286), (3592, 5754), (3836, 5388)]