12171520

素因数分解:

$2^8\times 5^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 30059064

約数和(自身を除く): 17887544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 256, 257, 296, 320, 370, 514, 592, 640, 740, 1028, 1184, 1280, 1285, 1480, 2056, 2368, 2570, 2960, 4112, 4736, 5140, 5920, 8224, 9472, 9509, 10280, 11840, 16448, 19018, 20560, 23680, 32896, 38036, 41120, 47360, 47545, 65792, 76072, 82240, 95090, 152144, 164480, 190180, 304288, 328960, 380360, 608576, 760720, 1217152, 1521440, 2434304, 3042880, 6085760, 12171520]

約数ペア:

[(1, 12171520), (2, 6085760), (4, 3042880), (5, 2434304), (8, 1521440), (10, 1217152), (16, 760720), (20, 608576), (32, 380360), (37, 328960), (40, 304288), (64, 190180), (74, 164480), (80, 152144), (128, 95090), (148, 82240), (160, 76072), (185, 65792), (256, 47545), (257, 47360), (296, 41120), (320, 38036), (370, 32896), (514, 23680), (592, 20560), (640, 19018), (740, 16448), (1028, 11840), (1184, 10280), (1280, 9509), (1285, 9472), (1480, 8224), (2056, 5920), (2368, 5140), (2570, 4736), (2960, 4112)]