15678971320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1\times {\mathrm{17909}}^1$

素因数の和:18472

約数の個数: 64

約数和(自身を含む): 36171036000

約数和(自身を除く): 20492064680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 509, 860, 1018, 1720, 2036, 2545, 4072, 5090, 10180, 17909, 20360, 21887, 35818, 43774, 71636, 87548, 89545, 109435, 143272, 175096, 179090, 218870, 358180, 437740, 716360, 770087, 875480, 1540174, 3080348, 3850435, 6160696, 7700870, 9115681, 15401740, 18231362, 30803480, 36462724, 45578405, 72925448, 91156810, 182313620, 364627240, 391974283, 783948566, 1567897132, 1959871415, 3135794264, 3919742830, 7839485660, 15678971320]

約数ペア:

[(1, 15678971320), (2, 7839485660), (4, 3919742830), (5, 3135794264), (8, 1959871415), (10, 1567897132), (20, 783948566), (40, 391974283), (43, 364627240), (86, 182313620), (172, 91156810), (215, 72925448), (344, 45578405), (430, 36462724), (509, 30803480), (860, 18231362), (1018, 15401740), (1720, 9115681), (2036, 7700870), (2545, 6160696), (4072, 3850435), (5090, 3080348), (10180, 1540174), (17909, 875480), (20360, 770087), (21887, 716360), (35818, 437740), (43774, 358180), (71636, 218870), (87548, 179090), (89545, 175096), (109435, 143272)]