668199455

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{877}}^1\times {\mathrm{1979}}^1$

素因数の和:2879

約数の個数: 32

約数和(自身を含む): 1001341440

約数和(自身を除く): 333141985

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 877, 1979, 4385, 6139, 9647, 9895, 13853, 21769, 30695, 48235, 67529, 69265, 108845, 152383, 337645, 761915, 1735583, 8677915, 12149081, 19091413, 60745405, 95457065, 133639891, 668199455]

約数ペア:

[(1, 668199455), (5, 133639891), (7, 95457065), (11, 60745405), (35, 19091413), (55, 12149081), (77, 8677915), (385, 1735583), (877, 761915), (1979, 337645), (4385, 152383), (6139, 108845), (9647, 69265), (9895, 67529), (13853, 48235), (21769, 30695)]