28766205

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{443}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 56689920

約数和(自身を除く): 27923715

約数列:

[1, 3, 5, 9, 13, 15, 27, 37, 39, 45, 65, 111, 117, 135, 185, 195, 333, 351, 443, 481, 555, 585, 999, 1329, 1443, 1665, 1755, 2215, 2405, 3987, 4329, 4995, 5759, 6645, 7215, 11961, 12987, 16391, 17277, 19935, 21645, 28795, 49173, 51831, 59805, 64935, 81955, 86385, 147519, 155493, 213083, 245865, 259155, 442557, 639249, 737595, 777465, 1065415, 1917747, 2212785, 3196245, 5753241, 9588735, 28766205]

約数ペア:

[(1, 28766205), (3, 9588735), (5, 5753241), (9, 3196245), (13, 2212785), (15, 1917747), (27, 1065415), (37, 777465), (39, 737595), (45, 639249), (65, 442557), (111, 259155), (117, 245865), (135, 213083), (185, 155493), (195, 147519), (333, 86385), (351, 81955), (443, 64935), (481, 59805), (555, 51831), (585, 49173), (999, 28795), (1329, 21645), (1443, 19935), (1665, 17277), (1755, 16391), (2215, 12987), (2405, 11961), (3987, 7215), (4329, 6645), (4995, 5759)]