7985775

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 72

約数和(自身を含む): 16030224

約数和(自身を除く): 8044449

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 41, 49, 53, 75, 105, 123, 147, 159, 175, 205, 245, 265, 287, 371, 525, 615, 735, 795, 861, 1025, 1113, 1225, 1325, 1435, 1855, 2009, 2173, 2597, 3075, 3675, 3975, 4305, 5565, 6027, 6519, 7175, 7791, 9275, 10045, 10865, 12985, 15211, 21525, 27825, 30135, 32595, 38955, 45633, 50225, 54325, 64925, 76055, 106477, 150675, 162975, 194775, 228165, 319431, 380275, 532385, 1140825, 1597155, 2661925, 7985775]

約数ペア:

[(1, 7985775), (3, 2661925), (5, 1597155), (7, 1140825), (15, 532385), (21, 380275), (25, 319431), (35, 228165), (41, 194775), (49, 162975), (53, 150675), (75, 106477), (105, 76055), (123, 64925), (147, 54325), (159, 50225), (175, 45633), (205, 38955), (245, 32595), (265, 30135), (287, 27825), (371, 21525), (525, 15211), (615, 12985), (735, 10865), (795, 10045), (861, 9275), (1025, 7791), (1113, 7175), (1225, 6519), (1325, 6027), (1435, 5565), (1855, 4305), (2009, 3975), (2173, 3675), (2597, 3075)]