19557776

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 80

約数和(自身を含む): 46092288

約数和(自身を除く): 26534512

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 43, 56, 62, 86, 112, 124, 131, 172, 217, 248, 262, 301, 344, 434, 496, 524, 602, 688, 868, 917, 1048, 1204, 1333, 1736, 1834, 2096, 2408, 2666, 3472, 3668, 4061, 4816, 5332, 5633, 7336, 8122, 9331, 10664, 11266, 14672, 16244, 18662, 21328, 22532, 28427, 32488, 37324, 39431, 45064, 56854, 64976, 74648, 78862, 90128, 113708, 149296, 157724, 174623, 227416, 315448, 349246, 454832, 630896, 698492, 1222361, 1396984, 2444722, 2793968, 4889444, 9778888, 19557776]

約数ペア:

[(1, 19557776), (2, 9778888), (4, 4889444), (7, 2793968), (8, 2444722), (14, 1396984), (16, 1222361), (28, 698492), (31, 630896), (43, 454832), (56, 349246), (62, 315448), (86, 227416), (112, 174623), (124, 157724), (131, 149296), (172, 113708), (217, 90128), (248, 78862), (262, 74648), (301, 64976), (344, 56854), (434, 45064), (496, 39431), (524, 37324), (602, 32488), (688, 28427), (868, 22532), (917, 21328), (1048, 18662), (1204, 16244), (1333, 14672), (1736, 11266), (1834, 10664), (2096, 9331), (2408, 8122), (2666, 7336), (3472, 5633), (3668, 5332), (4061, 4816)]