205656975

素因数分解:

$3^5\times 5^2\times {\mathrm{97}}^1\times {\mathrm{349}}^1$

素因数の和:471

約数の個数: 72

約数和(自身を含む): 387041200

約数和(自身を除く): 181384225

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 97, 135, 225, 243, 291, 349, 405, 485, 675, 873, 1047, 1215, 1455, 1745, 2025, 2425, 2619, 3141, 4365, 5235, 6075, 7275, 7857, 8725, 9423, 13095, 15705, 21825, 23571, 26175, 28269, 33853, 39285, 47115, 65475, 78525, 84807, 101559, 117855, 141345, 169265, 196425, 235575, 304677, 424035, 507795, 589275, 706725, 846325, 914031, 1523385, 2120175, 2538975, 2742093, 4570155, 7616925, 8226279, 13710465, 22850775, 41131395, 68552325, 205656975]

約数ペア:

[(1, 205656975), (3, 68552325), (5, 41131395), (9, 22850775), (15, 13710465), (25, 8226279), (27, 7616925), (45, 4570155), (75, 2742093), (81, 2538975), (97, 2120175), (135, 1523385), (225, 914031), (243, 846325), (291, 706725), (349, 589275), (405, 507795), (485, 424035), (675, 304677), (873, 235575), (1047, 196425), (1215, 169265), (1455, 141345), (1745, 117855), (2025, 101559), (2425, 84807), (2619, 78525), (3141, 65475), (4365, 47115), (5235, 39285), (6075, 33853), (7275, 28269), (7857, 26175), (8725, 23571), (9423, 21825), (13095, 15705)]