16728820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{887}}^1$

素因数の和:960

約数の個数: 48

約数和(自身を含む): 37594368

約数和(自身を除く): 20865548

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 205, 230, 410, 460, 820, 887, 943, 1774, 1886, 3548, 3772, 4435, 4715, 8870, 9430, 17740, 18860, 20401, 36367, 40802, 72734, 81604, 102005, 145468, 181835, 204010, 363670, 408020, 727340, 836441, 1672882, 3345764, 4182205, 8364410, 16728820]

約数ペア:

[(1, 16728820), (2, 8364410), (4, 4182205), (5, 3345764), (10, 1672882), (20, 836441), (23, 727340), (41, 408020), (46, 363670), (82, 204010), (92, 181835), (115, 145468), (164, 102005), (205, 81604), (230, 72734), (410, 40802), (460, 36367), (820, 20401), (887, 18860), (943, 17740), (1774, 9430), (1886, 8870), (3548, 4715), (3772, 4435)]