20281968

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:396

約数の個数: 160

約数和(自身を含む): 70233600

約数和(自身を除く): 49951632

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 27, 28, 36, 38, 42, 48, 54, 56, 57, 63, 72, 76, 84, 108, 112, 114, 126, 133, 144, 152, 168, 171, 189, 216, 228, 252, 266, 304, 336, 342, 353, 378, 399, 432, 456, 504, 513, 532, 684, 706, 756, 798, 912, 1008, 1026, 1059, 1064, 1197, 1368, 1412, 1512, 1596, 2052, 2118, 2128, 2394, 2471, 2736, 2824, 3024, 3177, 3192, 3591, 4104, 4236, 4788, 4942, 5648, 6354, 6384, 6707, 7182, 7413, 8208, 8472, 9531, 9576, 9884, 12708, 13414, 14364, 14826, 16944, 19062, 19152, 19768, 20121, 22239, 25416, 26828, 28728, 29652, 38124, 39536, 40242, 44478, 46949, 50832, 53656, 57456, 59304, 60363, 66717, 76248, 80484, 88956, 93898, 107312, 118608, 120726, 133434, 140847, 152496, 160968, 177912, 181089, 187796, 241452, 266868, 281694, 321936, 355824, 362178, 375592, 422541, 482904, 533736, 563388, 724356, 751184, 845082, 965808, 1067472, 1126776, 1267623, 1448712, 1690164, 2253552, 2535246, 2897424, 3380328, 5070492, 6760656, 10140984, 20281968]

約数ペア:

[(1, 20281968), (2, 10140984), (3, 6760656), (4, 5070492), (6, 3380328), (7, 2897424), (8, 2535246), (9, 2253552), (12, 1690164), (14, 1448712), (16, 1267623), (18, 1126776), (19, 1067472), (21, 965808), (24, 845082), (27, 751184), (28, 724356), (36, 563388), (38, 533736), (42, 482904), (48, 422541), (54, 375592), (56, 362178), (57, 355824), (63, 321936), (72, 281694), (76, 266868), (84, 241452), (108, 187796), (112, 181089), (114, 177912), (126, 160968), (133, 152496), (144, 140847), (152, 133434), (168, 120726), (171, 118608), (189, 107312), (216, 93898), (228, 88956), (252, 80484), (266, 76248), (304, 66717), (336, 60363), (342, 59304), (353, 57456), (378, 53656), (399, 50832), (432, 46949), (456, 44478), (504, 40242), (513, 39536), (532, 38124), (684, 29652), (706, 28728), (756, 26828), (798, 25416), (912, 22239), (1008, 20121), (1026, 19768), (1059, 19152), (1064, 19062), (1197, 16944), (1368, 14826), (1412, 14364), (1512, 13414), (1596, 12708), (2052, 9884), (2118, 9576), (2128, 9531), (2394, 8472), (2471, 8208), (2736, 7413), (2824, 7182), (3024, 6707), (3177, 6384), (3192, 6354), (3591, 5648), (4104, 4942), (4236, 4788)]