20905776

素因数分解:

$2^4\times 3^5\times {\mathrm{19}}^1\times {\mathrm{283}}^1$

素因数の和:325

約数の個数: 120

約数和(自身を含む): 64093120

約数和(自身を除く): 43187344

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 36, 38, 48, 54, 57, 72, 76, 81, 108, 114, 144, 152, 162, 171, 216, 228, 243, 283, 304, 324, 342, 432, 456, 486, 513, 566, 648, 684, 849, 912, 972, 1026, 1132, 1296, 1368, 1539, 1698, 1944, 2052, 2264, 2547, 2736, 3078, 3396, 3888, 4104, 4528, 4617, 5094, 5377, 6156, 6792, 7641, 8208, 9234, 10188, 10754, 12312, 13584, 15282, 16131, 18468, 20376, 21508, 22923, 24624, 30564, 32262, 36936, 40752, 43016, 45846, 48393, 61128, 64524, 68769, 73872, 86032, 91692, 96786, 122256, 129048, 137538, 145179, 183384, 193572, 258096, 275076, 290358, 366768, 387144, 435537, 550152, 580716, 774288, 871074, 1100304, 1161432, 1306611, 1742148, 2322864, 2613222, 3484296, 5226444, 6968592, 10452888, 20905776]

約数ペア:

[(1, 20905776), (2, 10452888), (3, 6968592), (4, 5226444), (6, 3484296), (8, 2613222), (9, 2322864), (12, 1742148), (16, 1306611), (18, 1161432), (19, 1100304), (24, 871074), (27, 774288), (36, 580716), (38, 550152), (48, 435537), (54, 387144), (57, 366768), (72, 290358), (76, 275076), (81, 258096), (108, 193572), (114, 183384), (144, 145179), (152, 137538), (162, 129048), (171, 122256), (216, 96786), (228, 91692), (243, 86032), (283, 73872), (304, 68769), (324, 64524), (342, 61128), (432, 48393), (456, 45846), (486, 43016), (513, 40752), (566, 36936), (648, 32262), (684, 30564), (849, 24624), (912, 22923), (972, 21508), (1026, 20376), (1132, 18468), (1296, 16131), (1368, 15282), (1539, 13584), (1698, 12312), (1944, 10754), (2052, 10188), (2264, 9234), (2547, 8208), (2736, 7641), (3078, 6792), (3396, 6156), (3888, 5377), (4104, 5094), (4528, 4617)]