16393420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 35981568

約数和(自身を除く): 19588148

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 137, 155, 193, 274, 310, 386, 548, 620, 685, 772, 965, 1370, 1930, 2740, 3860, 4247, 5983, 8494, 11966, 16988, 21235, 23932, 26441, 29915, 42470, 52882, 59830, 84940, 105764, 119660, 132205, 264410, 528820, 819671, 1639342, 3278684, 4098355, 8196710, 16393420]

約数ペア:

[(1, 16393420), (2, 8196710), (4, 4098355), (5, 3278684), (10, 1639342), (20, 819671), (31, 528820), (62, 264410), (124, 132205), (137, 119660), (155, 105764), (193, 84940), (274, 59830), (310, 52882), (386, 42470), (548, 29915), (620, 26441), (685, 23932), (772, 21235), (965, 16988), (1370, 11966), (1930, 8494), (2740, 5983), (3860, 4247)]