20405536

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:305

約数の個数: 48

約数和(自身を含む): 41827968

約数和(自身を除く): 21422432

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 103, 151, 164, 206, 302, 328, 412, 604, 656, 824, 1208, 1312, 1648, 2416, 3296, 4223, 4832, 6191, 8446, 12382, 15553, 16892, 24764, 31106, 33784, 49528, 62212, 67568, 99056, 124424, 135136, 198112, 248848, 497696, 637673, 1275346, 2550692, 5101384, 10202768, 20405536]

約数ペア:

[(1, 20405536), (2, 10202768), (4, 5101384), (8, 2550692), (16, 1275346), (32, 637673), (41, 497696), (82, 248848), (103, 198112), (151, 135136), (164, 124424), (206, 99056), (302, 67568), (328, 62212), (412, 49528), (604, 33784), (656, 31106), (824, 24764), (1208, 16892), (1312, 15553), (1648, 12382), (2416, 8446), (3296, 6191), (4223, 4832)]