20180113405

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1481}}^1\times {\mathrm{2521}}^1$

素因数の和:4077

約数の個数: 32

約数和(自身を含む): 25834318848

約数和(自身を除く): 5654205443

約数列:

[1, 5, 23, 47, 115, 235, 1081, 1481, 2521, 5405, 7405, 12605, 34063, 57983, 69607, 118487, 170315, 289915, 348035, 592435, 1600961, 2725201, 3733601, 8004805, 13626005, 18668005, 85872823, 175479247, 429364115, 877396235, 4036022681, 20180113405]

約数ペア:

[(1, 20180113405), (5, 4036022681), (23, 877396235), (47, 429364115), (115, 175479247), (235, 85872823), (1081, 18668005), (1481, 13626005), (2521, 8004805), (5405, 3733601), (7405, 2725201), (12605, 1600961), (34063, 592435), (57983, 348035), (69607, 289915), (118487, 170315)]