28012215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 56770560

約数和(自身を除く): 28758345

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 79, 105, 165, 231, 237, 307, 385, 395, 553, 869, 921, 1155, 1185, 1535, 1659, 2149, 2607, 2765, 3377, 4345, 4605, 6083, 6447, 8295, 10131, 10745, 13035, 16885, 18249, 23639, 24253, 30415, 32235, 50655, 70917, 72759, 91245, 118195, 121265, 169771, 266783, 354585, 363795, 509313, 800349, 848855, 1333915, 1867481, 2546565, 4001745, 5602443, 9337405, 28012215]

約数ペア:

[(1, 28012215), (3, 9337405), (5, 5602443), (7, 4001745), (11, 2546565), (15, 1867481), (21, 1333915), (33, 848855), (35, 800349), (55, 509313), (77, 363795), (79, 354585), (105, 266783), (165, 169771), (231, 121265), (237, 118195), (307, 91245), (385, 72759), (395, 70917), (553, 50655), (869, 32235), (921, 30415), (1155, 24253), (1185, 23639), (1535, 18249), (1659, 16885), (2149, 13035), (2607, 10745), (2765, 10131), (3377, 8295), (4345, 6447), (4605, 6083)]