128428195

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{2887}}^1$

素因数の和:2971

約数の個数: 32

約数和(自身を含む): 186310656

約数和(自身を除く): 57882461

約数列:

[1, 5, 7, 31, 35, 41, 155, 205, 217, 287, 1085, 1271, 1435, 2887, 6355, 8897, 14435, 20209, 44485, 89497, 101045, 118367, 447485, 591835, 626479, 828569, 3132395, 3669377, 4142845, 18346885, 25685639, 128428195]

約数ペア:

[(1, 128428195), (5, 25685639), (7, 18346885), (31, 4142845), (35, 3669377), (41, 3132395), (155, 828569), (205, 626479), (217, 591835), (287, 447485), (1085, 118367), (1271, 101045), (1435, 89497), (2887, 44485), (6355, 20209), (8897, 14435)]