81279870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{387047}}^1$

素因数の和:387064

約数の個数: 32

約数和(自身を含む): 222939648

約数和(自身を除く): 141659778

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 387047, 774094, 1161141, 1935235, 2322282, 2709329, 3870470, 5418658, 5805705, 8127987, 11611410, 13546645, 16255974, 27093290, 40639935, 81279870]

約数ペア:

[(1, 81279870), (2, 40639935), (3, 27093290), (5, 16255974), (6, 13546645), (7, 11611410), (10, 8127987), (14, 5805705), (15, 5418658), (21, 3870470), (30, 2709329), (35, 2322282), (42, 1935235), (70, 1161141), (105, 774094), (210, 387047)]