72781568

素因数分解:

$2^8\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:349

約数の個数: 72

約数和(自身を含む): 155409408

約数和(自身を除く): 82627840

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 47, 64, 92, 94, 128, 184, 188, 256, 263, 368, 376, 526, 736, 752, 1052, 1081, 1472, 1504, 2104, 2162, 2944, 3008, 4208, 4324, 5888, 6016, 6049, 8416, 8648, 12032, 12098, 12361, 16832, 17296, 24196, 24722, 33664, 34592, 48392, 49444, 67328, 69184, 96784, 98888, 138368, 193568, 197776, 276736, 284303, 387136, 395552, 568606, 774272, 791104, 1137212, 1548544, 1582208, 2274424, 3164416, 4548848, 9097696, 18195392, 36390784, 72781568]

約数ペア:

[(1, 72781568), (2, 36390784), (4, 18195392), (8, 9097696), (16, 4548848), (23, 3164416), (32, 2274424), (46, 1582208), (47, 1548544), (64, 1137212), (92, 791104), (94, 774272), (128, 568606), (184, 395552), (188, 387136), (256, 284303), (263, 276736), (368, 197776), (376, 193568), (526, 138368), (736, 98888), (752, 96784), (1052, 69184), (1081, 67328), (1472, 49444), (1504, 48392), (2104, 34592), (2162, 33664), (2944, 24722), (3008, 24196), (4208, 17296), (4324, 16832), (5888, 12361), (6016, 12098), (6049, 12032), (8416, 8648)]