20378204

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{607}}^1$

素因数の和:738

約数の個数: 48

約数和(自身を含む): 44943360

約数和(自身を除く): 24565156

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 109, 154, 218, 308, 436, 607, 763, 1199, 1214, 1526, 2398, 2428, 3052, 4249, 4796, 6677, 8393, 8498, 13354, 16786, 16996, 26708, 33572, 46739, 66163, 93478, 132326, 186956, 264652, 463141, 727793, 926282, 1455586, 1852564, 2911172, 5094551, 10189102, 20378204]

約数ペア:

[(1, 20378204), (2, 10189102), (4, 5094551), (7, 2911172), (11, 1852564), (14, 1455586), (22, 926282), (28, 727793), (44, 463141), (77, 264652), (109, 186956), (154, 132326), (218, 93478), (308, 66163), (436, 46739), (607, 33572), (763, 26708), (1199, 16996), (1214, 16786), (1526, 13354), (2398, 8498), (2428, 8393), (3052, 6677), (4249, 4796)]