20139878878

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1\times {\mathrm{2377}}^1$

素因数の和:2965

約数の個数: 64

約数和(自身を含む): 36674467200

約数和(自身を除く): 16534588322

約数列:

[1, 2, 7, 14, 29, 41, 58, 82, 203, 287, 406, 509, 574, 1018, 1189, 2377, 2378, 3563, 4754, 7126, 8323, 14761, 16639, 16646, 20869, 29522, 33278, 41738, 68933, 97457, 103327, 137866, 146083, 194914, 206654, 292166, 482531, 605201, 682199, 965062, 1209893, 1210402, 1364398, 2419786, 2826253, 4236407, 5652506, 8469251, 8472814, 16938502, 19783771, 35086897, 39567542, 49605613, 70173794, 99211226, 245608279, 347239291, 491216558, 694478582, 1438562777, 2877125554, 10069939439, 20139878878]

約数ペア:

[(1, 20139878878), (2, 10069939439), (7, 2877125554), (14, 1438562777), (29, 694478582), (41, 491216558), (58, 347239291), (82, 245608279), (203, 99211226), (287, 70173794), (406, 49605613), (509, 39567542), (574, 35086897), (1018, 19783771), (1189, 16938502), (2377, 8472814), (2378, 8469251), (3563, 5652506), (4754, 4236407), (7126, 2826253), (8323, 2419786), (14761, 1364398), (16639, 1210402), (16646, 1209893), (20869, 965062), (29522, 682199), (33278, 605201), (41738, 482531), (68933, 292166), (97457, 206654), (103327, 194914), (137866, 146083)]