81850356

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{379}}^1\times {\mathrm{857}}^1$

素因数の和:1253

約数の個数: 72

約数和(自身を含む): 237357120

約数和(自身を除く): 155506764

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 379, 758, 857, 1137, 1516, 1714, 2274, 2571, 2653, 3411, 3428, 4548, 5142, 5306, 5999, 6822, 7713, 7959, 10284, 10612, 11998, 13644, 15426, 15918, 17997, 23877, 23996, 30852, 31836, 35994, 47754, 53991, 71988, 95508, 107982, 215964, 324803, 649606, 974409, 1299212, 1948818, 2273621, 2923227, 3897636, 4547242, 5846454, 6820863, 9094484, 11692908, 13641726, 20462589, 27283452, 40925178, 81850356]

約数ペア:

[(1, 81850356), (2, 40925178), (3, 27283452), (4, 20462589), (6, 13641726), (7, 11692908), (9, 9094484), (12, 6820863), (14, 5846454), (18, 4547242), (21, 3897636), (28, 2923227), (36, 2273621), (42, 1948818), (63, 1299212), (84, 974409), (126, 649606), (252, 324803), (379, 215964), (758, 107982), (857, 95508), (1137, 71988), (1516, 53991), (1714, 47754), (2274, 35994), (2571, 31836), (2653, 30852), (3411, 23996), (3428, 23877), (4548, 17997), (5142, 15918), (5306, 15426), (5999, 13644), (6822, 11998), (7713, 10612), (7959, 10284)]