20453552

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:226

約数の個数: 80

約数和(自身を含む): 48187392

約数和(自身を除く): 27733840

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 43, 56, 62, 86, 112, 124, 137, 172, 217, 248, 274, 301, 344, 434, 496, 548, 602, 688, 868, 959, 1096, 1204, 1333, 1736, 1918, 2192, 2408, 2666, 3472, 3836, 4247, 4816, 5332, 5891, 7672, 8494, 9331, 10664, 11782, 15344, 16988, 18662, 21328, 23564, 29729, 33976, 37324, 41237, 47128, 59458, 67952, 74648, 82474, 94256, 118916, 149296, 164948, 182621, 237832, 329896, 365242, 475664, 659792, 730484, 1278347, 1460968, 2556694, 2921936, 5113388, 10226776, 20453552]

約数ペア:

[(1, 20453552), (2, 10226776), (4, 5113388), (7, 2921936), (8, 2556694), (14, 1460968), (16, 1278347), (28, 730484), (31, 659792), (43, 475664), (56, 365242), (62, 329896), (86, 237832), (112, 182621), (124, 164948), (137, 149296), (172, 118916), (217, 94256), (248, 82474), (274, 74648), (301, 67952), (344, 59458), (434, 47128), (496, 41237), (548, 37324), (602, 33976), (688, 29729), (868, 23564), (959, 21328), (1096, 18662), (1204, 16988), (1333, 15344), (1736, 11782), (1918, 10664), (2192, 9331), (2408, 8494), (2666, 7672), (3472, 5891), (3836, 5332), (4247, 4816)]