81951975

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{853}}^1$

素因数の和:937

約数の個数: 72

約数和(自身を含む): 170704352

約数和(自身を除く): 88752377

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 61, 63, 75, 105, 175, 183, 225, 305, 315, 427, 525, 549, 853, 915, 1281, 1525, 1575, 2135, 2559, 2745, 3843, 4265, 4575, 5971, 6405, 7677, 10675, 12795, 13725, 17913, 19215, 21325, 29855, 32025, 38385, 52033, 53739, 63975, 89565, 96075, 149275, 156099, 191925, 260165, 268695, 364231, 447825, 468297, 780495, 1092693, 1300825, 1343475, 1821155, 2341485, 3278079, 3902475, 5463465, 9105775, 11707425, 16390395, 27317325, 81951975]

約数ペア:

[(1, 81951975), (3, 27317325), (5, 16390395), (7, 11707425), (9, 9105775), (15, 5463465), (21, 3902475), (25, 3278079), (35, 2341485), (45, 1821155), (61, 1343475), (63, 1300825), (75, 1092693), (105, 780495), (175, 468297), (183, 447825), (225, 364231), (305, 268695), (315, 260165), (427, 191925), (525, 156099), (549, 149275), (853, 96075), (915, 89565), (1281, 63975), (1525, 53739), (1575, 52033), (2135, 38385), (2559, 32025), (2745, 29855), (3843, 21325), (4265, 19215), (4575, 17913), (5971, 13725), (6405, 12795), (7677, 10675)]