205193940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1901}}^1$

素因数の和:2177

約数の個数: 96

約数和(自身を含む): 659522304

約数和(自身を除く): 454328364

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 257, 420, 514, 771, 1028, 1285, 1542, 1799, 1901, 2570, 3084, 3598, 3802, 3855, 5140, 5397, 5703, 7196, 7604, 7710, 8995, 9505, 10794, 11406, 13307, 15420, 17990, 19010, 21588, 22812, 26614, 26985, 28515, 35980, 38020, 39921, 53228, 53970, 57030, 66535, 79842, 107940, 114060, 133070, 159684, 199605, 266140, 399210, 488557, 798420, 977114, 1465671, 1954228, 2442785, 2931342, 3419899, 4885570, 5862684, 6839798, 7328355, 9771140, 10259697, 13679596, 14656710, 17099495, 20519394, 29313420, 34198990, 41038788, 51298485, 68397980, 102596970, 205193940]

約数ペア:

[(1, 205193940), (2, 102596970), (3, 68397980), (4, 51298485), (5, 41038788), (6, 34198990), (7, 29313420), (10, 20519394), (12, 17099495), (14, 14656710), (15, 13679596), (20, 10259697), (21, 9771140), (28, 7328355), (30, 6839798), (35, 5862684), (42, 4885570), (60, 3419899), (70, 2931342), (84, 2442785), (105, 1954228), (140, 1465671), (210, 977114), (257, 798420), (420, 488557), (514, 399210), (771, 266140), (1028, 199605), (1285, 159684), (1542, 133070), (1799, 114060), (1901, 107940), (2570, 79842), (3084, 66535), (3598, 57030), (3802, 53970), (3855, 53228), (5140, 39921), (5397, 38020), (5703, 35980), (7196, 28515), (7604, 26985), (7710, 26614), (8995, 22812), (9505, 21588), (10794, 19010), (11406, 17990), (13307, 15420)]