20065568

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:369

約数の個数: 48

約数和(自身を含む): 41731200

約数和(自身を除く): 21665632

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 137, 184, 199, 274, 368, 398, 548, 736, 796, 1096, 1592, 2192, 3151, 3184, 4384, 4577, 6302, 6368, 9154, 12604, 18308, 25208, 27263, 36616, 50416, 54526, 73232, 100832, 109052, 146464, 218104, 436208, 627049, 872416, 1254098, 2508196, 5016392, 10032784, 20065568]

約数ペア:

[(1, 20065568), (2, 10032784), (4, 5016392), (8, 2508196), (16, 1254098), (23, 872416), (32, 627049), (46, 436208), (92, 218104), (137, 146464), (184, 109052), (199, 100832), (274, 73232), (368, 54526), (398, 50416), (548, 36616), (736, 27263), (796, 25208), (1096, 18308), (1592, 12604), (2192, 9154), (3151, 6368), (3184, 6302), (4384, 4577)]