31990700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1987}}^1$

素因数の和:2031

約数の個数: 72

約数和(自身を含む): 82828032

約数和(自身を除く): 50837332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 140, 161, 175, 230, 322, 350, 460, 575, 644, 700, 805, 1150, 1610, 1987, 2300, 3220, 3974, 4025, 7948, 8050, 9935, 13909, 16100, 19870, 27818, 39740, 45701, 49675, 55636, 69545, 91402, 99350, 139090, 182804, 198700, 228505, 278180, 319907, 347725, 457010, 639814, 695450, 914020, 1142525, 1279628, 1390900, 1599535, 2285050, 3199070, 4570100, 6398140, 7997675, 15995350, 31990700]

約数ペア:

[(1, 31990700), (2, 15995350), (4, 7997675), (5, 6398140), (7, 4570100), (10, 3199070), (14, 2285050), (20, 1599535), (23, 1390900), (25, 1279628), (28, 1142525), (35, 914020), (46, 695450), (50, 639814), (70, 457010), (92, 347725), (100, 319907), (115, 278180), (140, 228505), (161, 198700), (175, 182804), (230, 139090), (322, 99350), (350, 91402), (460, 69545), (575, 55636), (644, 49675), (700, 45701), (805, 39740), (1150, 27818), (1610, 19870), (1987, 16100), (2300, 13909), (3220, 9935), (3974, 8050), (4025, 7948)]