20267940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:178

約数の個数: 192

約数和(自身を含む): 73156608

約数和(自身を除く): 52888668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 41, 42, 44, 55, 60, 66, 70, 77, 82, 84, 105, 107, 110, 123, 132, 140, 154, 164, 165, 205, 210, 214, 220, 231, 246, 287, 308, 321, 330, 385, 410, 420, 428, 451, 462, 492, 535, 574, 615, 642, 660, 749, 770, 820, 861, 902, 924, 1070, 1148, 1155, 1177, 1230, 1284, 1353, 1435, 1498, 1540, 1605, 1722, 1804, 2140, 2247, 2255, 2310, 2354, 2460, 2706, 2870, 2996, 3157, 3210, 3444, 3531, 3745, 4305, 4387, 4494, 4510, 4620, 4708, 5412, 5740, 5885, 6314, 6420, 6765, 7062, 7490, 8239, 8610, 8774, 8988, 9020, 9471, 11235, 11770, 12628, 13161, 13530, 14124, 14980, 15785, 16478, 17220, 17548, 17655, 18942, 21935, 22470, 23540, 24717, 26322, 27060, 30709, 31570, 32956, 35310, 37884, 41195, 43870, 44940, 47355, 48257, 49434, 52644, 61418, 63140, 65805, 70620, 82390, 87740, 92127, 94710, 96514, 98868, 122836, 123585, 131610, 144771, 153545, 164780, 184254, 189420, 193028, 241285, 247170, 263220, 289542, 307090, 337799, 368508, 460635, 482570, 494340, 579084, 614180, 675598, 723855, 921270, 965140, 1013397, 1351196, 1447710, 1688995, 1842540, 2026794, 2895420, 3377990, 4053588, 5066985, 6755980, 10133970, 20267940]

約数ペア:

[(1, 20267940), (2, 10133970), (3, 6755980), (4, 5066985), (5, 4053588), (6, 3377990), (7, 2895420), (10, 2026794), (11, 1842540), (12, 1688995), (14, 1447710), (15, 1351196), (20, 1013397), (21, 965140), (22, 921270), (28, 723855), (30, 675598), (33, 614180), (35, 579084), (41, 494340), (42, 482570), (44, 460635), (55, 368508), (60, 337799), (66, 307090), (70, 289542), (77, 263220), (82, 247170), (84, 241285), (105, 193028), (107, 189420), (110, 184254), (123, 164780), (132, 153545), (140, 144771), (154, 131610), (164, 123585), (165, 122836), (205, 98868), (210, 96514), (214, 94710), (220, 92127), (231, 87740), (246, 82390), (287, 70620), (308, 65805), (321, 63140), (330, 61418), (385, 52644), (410, 49434), (420, 48257), (428, 47355), (451, 44940), (462, 43870), (492, 41195), (535, 37884), (574, 35310), (615, 32956), (642, 31570), (660, 30709), (749, 27060), (770, 26322), (820, 24717), (861, 23540), (902, 22470), (924, 21935), (1070, 18942), (1148, 17655), (1155, 17548), (1177, 17220), (1230, 16478), (1284, 15785), (1353, 14980), (1435, 14124), (1498, 13530), (1540, 13161), (1605, 12628), (1722, 11770), (1804, 11235), (2140, 9471), (2247, 9020), (2255, 8988), (2310, 8774), (2354, 8610), (2460, 8239), (2706, 7490), (2870, 7062), (2996, 6765), (3157, 6420), (3210, 6314), (3444, 5885), (3531, 5740), (3745, 5412), (4305, 4708), (4387, 4620), (4494, 4510)]