20028204

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:172

約数の個数: 144

約数和(自身を含む): 62899200

約数和(自身を除く): 42870996

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 47, 57, 63, 76, 84, 89, 94, 114, 126, 133, 141, 171, 178, 188, 228, 252, 266, 267, 282, 329, 342, 356, 399, 423, 532, 534, 564, 623, 658, 684, 798, 801, 846, 893, 987, 1068, 1197, 1246, 1316, 1596, 1602, 1691, 1692, 1786, 1869, 1974, 2394, 2492, 2679, 2961, 3204, 3382, 3572, 3738, 3948, 4183, 4788, 5073, 5358, 5607, 5922, 6251, 6764, 7476, 8037, 8366, 10146, 10716, 11214, 11837, 11844, 12502, 12549, 15219, 16074, 16732, 18753, 20292, 22428, 23674, 25004, 25098, 29281, 30438, 32148, 35511, 37506, 37647, 47348, 50196, 56259, 58562, 60876, 71022, 75012, 75294, 79477, 87843, 106533, 112518, 117124, 142044, 150588, 158954, 175686, 213066, 225036, 238431, 263529, 317908, 351372, 426132, 476862, 527058, 556339, 715293, 953724, 1054116, 1112678, 1430586, 1669017, 2225356, 2861172, 3338034, 5007051, 6676068, 10014102, 20028204]

約数ペア:

[(1, 20028204), (2, 10014102), (3, 6676068), (4, 5007051), (6, 3338034), (7, 2861172), (9, 2225356), (12, 1669017), (14, 1430586), (18, 1112678), (19, 1054116), (21, 953724), (28, 715293), (36, 556339), (38, 527058), (42, 476862), (47, 426132), (57, 351372), (63, 317908), (76, 263529), (84, 238431), (89, 225036), (94, 213066), (114, 175686), (126, 158954), (133, 150588), (141, 142044), (171, 117124), (178, 112518), (188, 106533), (228, 87843), (252, 79477), (266, 75294), (267, 75012), (282, 71022), (329, 60876), (342, 58562), (356, 56259), (399, 50196), (423, 47348), (532, 37647), (534, 37506), (564, 35511), (623, 32148), (658, 30438), (684, 29281), (798, 25098), (801, 25004), (846, 23674), (893, 22428), (987, 20292), (1068, 18753), (1197, 16732), (1246, 16074), (1316, 15219), (1596, 12549), (1602, 12502), (1691, 11844), (1692, 11837), (1786, 11214), (1869, 10716), (1974, 10146), (2394, 8366), (2492, 8037), (2679, 7476), (2961, 6764), (3204, 6251), (3382, 5922), (3572, 5607), (3738, 5358), (3948, 5073), (4183, 4788)]