397493855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{743}}^1$

素因数の和:967

約数の個数: 32

約数和(自身を含む): 532251648

約数和(自身を除く): 134757793

約数列:

[1, 5, 11, 55, 71, 137, 355, 685, 743, 781, 1507, 3715, 3905, 7535, 8173, 9727, 40865, 48635, 52753, 101791, 106997, 263765, 508955, 534985, 580283, 1119701, 2901415, 5598505, 7227161, 36135805, 79498771, 397493855]

約数ペア:

[(1, 397493855), (5, 79498771), (11, 36135805), (55, 7227161), (71, 5598505), (137, 2901415), (355, 1119701), (685, 580283), (743, 534985), (781, 508955), (1507, 263765), (3715, 106997), (3905, 101791), (7535, 52753), (8173, 48635), (9727, 40865)]