2782780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 7902720

約数和(自身を除く): 5119940

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 139, 140, 143, 154, 182, 220, 260, 278, 286, 308, 364, 385, 455, 556, 572, 695, 715, 770, 910, 973, 1001, 1390, 1430, 1529, 1540, 1807, 1820, 1946, 2002, 2780, 2860, 3058, 3614, 3892, 4004, 4865, 5005, 6116, 7228, 7645, 9035, 9730, 10010, 10703, 12649, 15290, 18070, 19460, 19877, 20020, 21406, 25298, 30580, 36140, 39754, 42812, 50596, 53515, 63245, 79508, 99385, 107030, 126490, 139139, 198770, 214060, 252980, 278278, 397540, 556556, 695695, 1391390, 2782780]

約数ペア:

[(1, 2782780), (2, 1391390), (4, 695695), (5, 556556), (7, 397540), (10, 278278), (11, 252980), (13, 214060), (14, 198770), (20, 139139), (22, 126490), (26, 107030), (28, 99385), (35, 79508), (44, 63245), (52, 53515), (55, 50596), (65, 42812), (70, 39754), (77, 36140), (91, 30580), (110, 25298), (130, 21406), (139, 20020), (140, 19877), (143, 19460), (154, 18070), (182, 15290), (220, 12649), (260, 10703), (278, 10010), (286, 9730), (308, 9035), (364, 7645), (385, 7228), (455, 6116), (556, 5005), (572, 4865), (695, 4004), (715, 3892), (770, 3614), (910, 3058), (973, 2860), (1001, 2780), (1390, 2002), (1430, 1946), (1529, 1820), (1540, 1807)]