7966640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{823}}^1$

素因数の和:858

約数の個数: 60

約数和(自身を含む): 20384112

約数和(自身を除く): 12417472

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 823, 880, 968, 1210, 1646, 1936, 2420, 3292, 4115, 4840, 6584, 8230, 9053, 9680, 13168, 16460, 18106, 32920, 36212, 45265, 65840, 72424, 90530, 99583, 144848, 181060, 199166, 362120, 398332, 497915, 724240, 796664, 995830, 1593328, 1991660, 3983320, 7966640]

約数ペア:

[(1, 7966640), (2, 3983320), (4, 1991660), (5, 1593328), (8, 995830), (10, 796664), (11, 724240), (16, 497915), (20, 398332), (22, 362120), (40, 199166), (44, 181060), (55, 144848), (80, 99583), (88, 90530), (110, 72424), (121, 65840), (176, 45265), (220, 36212), (242, 32920), (440, 18106), (484, 16460), (605, 13168), (823, 9680), (880, 9053), (968, 8230), (1210, 6584), (1646, 4840), (1936, 4115), (2420, 3292)]