28654780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{809}}^1$

素因数の和:859

約数の個数: 96

約数和(自身を含む): 78382080

約数和(自身を除く): 49727300

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 28, 35, 44, 46, 55, 70, 77, 92, 110, 115, 140, 154, 161, 220, 230, 253, 308, 322, 385, 460, 506, 644, 770, 805, 809, 1012, 1265, 1540, 1610, 1618, 1771, 2530, 3220, 3236, 3542, 4045, 5060, 5663, 7084, 8090, 8855, 8899, 11326, 16180, 17710, 17798, 18607, 22652, 28315, 35420, 35596, 37214, 44495, 56630, 62293, 74428, 88990, 93035, 113260, 124586, 130249, 177980, 186070, 204677, 249172, 260498, 311465, 372140, 409354, 520996, 622930, 651245, 818708, 1023385, 1245860, 1302490, 1432739, 2046770, 2604980, 2865478, 4093540, 5730956, 7163695, 14327390, 28654780]

約数ペア:

[(1, 28654780), (2, 14327390), (4, 7163695), (5, 5730956), (7, 4093540), (10, 2865478), (11, 2604980), (14, 2046770), (20, 1432739), (22, 1302490), (23, 1245860), (28, 1023385), (35, 818708), (44, 651245), (46, 622930), (55, 520996), (70, 409354), (77, 372140), (92, 311465), (110, 260498), (115, 249172), (140, 204677), (154, 186070), (161, 177980), (220, 130249), (230, 124586), (253, 113260), (308, 93035), (322, 88990), (385, 74428), (460, 62293), (506, 56630), (644, 44495), (770, 37214), (805, 35596), (809, 35420), (1012, 28315), (1265, 22652), (1540, 18607), (1610, 17798), (1618, 17710), (1771, 16180), (2530, 11326), (3220, 8899), (3236, 8855), (3542, 8090), (4045, 7084), (5060, 5663)]