28812645

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:319

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 26483355

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 47, 57, 95, 135, 141, 171, 235, 239, 285, 423, 513, 705, 717, 855, 893, 1195, 1269, 2115, 2151, 2565, 2679, 3585, 4465, 4541, 6345, 6453, 8037, 10755, 11233, 13395, 13623, 22705, 24111, 32265, 33699, 40185, 40869, 56165, 68115, 101097, 120555, 122607, 168495, 204345, 213427, 303291, 505485, 613035, 640281, 1067135, 1516455, 1920843, 3201405, 5762529, 9604215, 28812645]

約数ペア:

[(1, 28812645), (3, 9604215), (5, 5762529), (9, 3201405), (15, 1920843), (19, 1516455), (27, 1067135), (45, 640281), (47, 613035), (57, 505485), (95, 303291), (135, 213427), (141, 204345), (171, 168495), (235, 122607), (239, 120555), (285, 101097), (423, 68115), (513, 56165), (705, 40869), (717, 40185), (855, 33699), (893, 32265), (1195, 24111), (1269, 22705), (2115, 13623), (2151, 13395), (2565, 11233), (2679, 10755), (3585, 8037), (4465, 6453), (4541, 6345)]