20004556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{853}}^1$

素因数の和:922

約数の個数: 48

約数和(自身を含む): 42180768

約数和(自身を除く): 22176212

約数列:

[1, 2, 4, 11, 13, 22, 26, 41, 44, 52, 82, 143, 164, 286, 451, 533, 572, 853, 902, 1066, 1706, 1804, 2132, 3412, 5863, 9383, 11089, 11726, 18766, 22178, 23452, 34973, 37532, 44356, 69946, 121979, 139892, 243958, 384703, 454649, 487916, 769406, 909298, 1538812, 1818596, 5001139, 10002278, 20004556]

約数ペア:

[(1, 20004556), (2, 10002278), (4, 5001139), (11, 1818596), (13, 1538812), (22, 909298), (26, 769406), (41, 487916), (44, 454649), (52, 384703), (82, 243958), (143, 139892), (164, 121979), (286, 69946), (451, 44356), (533, 37532), (572, 34973), (853, 23452), (902, 22178), (1066, 18766), (1706, 11726), (1804, 11089), (2132, 9383), (3412, 5863)]