81814208

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:230

約数の個数: 112

約数和(自身を含む): 197412864

約数和(自身を除く): 115598656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 43, 56, 62, 64, 86, 112, 124, 137, 172, 217, 224, 248, 274, 301, 344, 434, 448, 496, 548, 602, 688, 868, 959, 992, 1096, 1204, 1333, 1376, 1736, 1918, 1984, 2192, 2408, 2666, 2752, 3472, 3836, 4247, 4384, 4816, 5332, 5891, 6944, 7672, 8494, 8768, 9331, 9632, 10664, 11782, 13888, 15344, 16988, 18662, 19264, 21328, 23564, 29729, 30688, 33976, 37324, 41237, 42656, 47128, 59458, 61376, 67952, 74648, 82474, 85312, 94256, 118916, 135904, 149296, 164948, 182621, 188512, 237832, 271808, 298592, 329896, 365242, 377024, 475664, 597184, 659792, 730484, 951328, 1278347, 1319584, 1460968, 1902656, 2556694, 2639168, 2921936, 5113388, 5843872, 10226776, 11687744, 20453552, 40907104, 81814208]

約数ペア:

[(1, 81814208), (2, 40907104), (4, 20453552), (7, 11687744), (8, 10226776), (14, 5843872), (16, 5113388), (28, 2921936), (31, 2639168), (32, 2556694), (43, 1902656), (56, 1460968), (62, 1319584), (64, 1278347), (86, 951328), (112, 730484), (124, 659792), (137, 597184), (172, 475664), (217, 377024), (224, 365242), (248, 329896), (274, 298592), (301, 271808), (344, 237832), (434, 188512), (448, 182621), (496, 164948), (548, 149296), (602, 135904), (688, 118916), (868, 94256), (959, 85312), (992, 82474), (1096, 74648), (1204, 67952), (1333, 61376), (1376, 59458), (1736, 47128), (1918, 42656), (1984, 41237), (2192, 37324), (2408, 33976), (2666, 30688), (2752, 29729), (3472, 23564), (3836, 21328), (4247, 19264), (4384, 18662), (4816, 16988), (5332, 15344), (5891, 13888), (6944, 11782), (7672, 10664), (8494, 9632), (8768, 9331)]