87347830

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:744

約数の個数: 32

約数和(自身を含む): 159952320

約数和(自身を除く): 72604490

約数列:

[1, 2, 5, 10, 101, 197, 202, 394, 439, 505, 878, 985, 1010, 1970, 2195, 4390, 19897, 39794, 44339, 86483, 88678, 99485, 172966, 198970, 221695, 432415, 443390, 864830, 8734783, 17469566, 43673915, 87347830]

約数ペア:

[(1, 87347830), (2, 43673915), (5, 17469566), (10, 8734783), (101, 864830), (197, 443390), (202, 432415), (394, 221695), (439, 198970), (505, 172966), (878, 99485), (985, 88678), (1010, 86483), (1970, 44339), (2195, 39794), (4390, 19897)]