28805055

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:176

約数の個数: 64

約数和(自身を含む): 52005888

約数和(自身を除く): 23200833

約数列:

[1, 3, 5, 15, 17, 37, 43, 51, 71, 85, 111, 129, 185, 213, 215, 255, 355, 555, 629, 645, 731, 1065, 1207, 1591, 1887, 2193, 2627, 3053, 3145, 3621, 3655, 4773, 6035, 7881, 7955, 9159, 9435, 10965, 13135, 15265, 18105, 23865, 27047, 39405, 44659, 45795, 51901, 81141, 112961, 133977, 135235, 155703, 223295, 259505, 338883, 405705, 564805, 669885, 778515, 1694415, 1920337, 5761011, 9601685, 28805055]

約数ペア:

[(1, 28805055), (3, 9601685), (5, 5761011), (15, 1920337), (17, 1694415), (37, 778515), (43, 669885), (51, 564805), (71, 405705), (85, 338883), (111, 259505), (129, 223295), (185, 155703), (213, 135235), (215, 133977), (255, 112961), (355, 81141), (555, 51901), (629, 45795), (645, 44659), (731, 39405), (1065, 27047), (1207, 23865), (1591, 18105), (1887, 15265), (2193, 13135), (2627, 10965), (3053, 9435), (3145, 9159), (3621, 7955), (3655, 7881), (4773, 6035)]