81051904

素因数分解:

$2^8\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:295

約数の個数: 72

約数和(自身を含む): 170878400

約数和(自身を除く): 89826496

約数列:

[1, 2, 4, 8, 16, 32, 37, 43, 64, 74, 86, 128, 148, 172, 199, 256, 296, 344, 398, 592, 688, 796, 1184, 1376, 1591, 1592, 2368, 2752, 3182, 3184, 4736, 5504, 6364, 6368, 7363, 8557, 9472, 11008, 12728, 12736, 14726, 17114, 25456, 25472, 29452, 34228, 50912, 50944, 58904, 68456, 101824, 117808, 136912, 203648, 235616, 273824, 316609, 407296, 471232, 547648, 633218, 942464, 1095296, 1266436, 1884928, 2190592, 2532872, 5065744, 10131488, 20262976, 40525952, 81051904]

約数ペア:

[(1, 81051904), (2, 40525952), (4, 20262976), (8, 10131488), (16, 5065744), (32, 2532872), (37, 2190592), (43, 1884928), (64, 1266436), (74, 1095296), (86, 942464), (128, 633218), (148, 547648), (172, 471232), (199, 407296), (256, 316609), (296, 273824), (344, 235616), (398, 203648), (592, 136912), (688, 117808), (796, 101824), (1184, 68456), (1376, 58904), (1591, 50944), (1592, 50912), (2368, 34228), (2752, 29452), (3182, 25472), (3184, 25456), (4736, 17114), (5504, 14726), (6364, 12736), (6368, 12728), (7363, 11008), (8557, 9472)]