91978280

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{6947}}^1$

素因数の和:7289

約数の個数: 32

約数和(自身を含む): 207606240

約数和(自身を除く): 115627960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6620, 6947, 13240, 13894, 27788, 34735, 55576, 69470, 138940, 277880, 2299457, 4598914, 9197828, 11497285, 18395656, 22994570, 45989140, 91978280]

約数ペア:

[(1, 91978280), (2, 45989140), (4, 22994570), (5, 18395656), (8, 11497285), (10, 9197828), (20, 4598914), (40, 2299457), (331, 277880), (662, 138940), (1324, 69470), (1655, 55576), (2648, 34735), (3310, 27788), (6620, 13894), (6947, 13240)]