31155992

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 69949440

約数和(自身を除く): 38793448

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 131, 137, 217, 248, 262, 274, 434, 524, 548, 868, 917, 959, 1048, 1096, 1736, 1834, 1918, 3668, 3836, 4061, 4247, 7336, 7672, 8122, 8494, 16244, 16988, 17947, 28427, 29729, 32488, 33976, 35894, 56854, 59458, 71788, 113708, 118916, 125629, 143576, 227416, 237832, 251258, 502516, 556357, 1005032, 1112714, 2225428, 3894499, 4450856, 7788998, 15577996, 31155992]

約数ペア:

[(1, 31155992), (2, 15577996), (4, 7788998), (7, 4450856), (8, 3894499), (14, 2225428), (28, 1112714), (31, 1005032), (56, 556357), (62, 502516), (124, 251258), (131, 237832), (137, 227416), (217, 143576), (248, 125629), (262, 118916), (274, 113708), (434, 71788), (524, 59458), (548, 56854), (868, 35894), (917, 33976), (959, 32488), (1048, 29729), (1096, 28427), (1736, 17947), (1834, 16988), (1918, 16244), (3668, 8494), (3836, 8122), (4061, 7672), (4247, 7336)]