208100090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{991}}^1$

素因数の和:1115

約数の個数: 64

約数和(自身を含む): 431972352

約数和(自身を除く): 223872262

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 83, 110, 115, 166, 230, 253, 415, 506, 830, 913, 991, 1265, 1826, 1909, 1982, 2530, 3818, 4565, 4955, 9130, 9545, 9910, 10901, 19090, 20999, 21802, 22793, 41998, 45586, 54505, 82253, 104995, 109010, 113965, 164506, 209990, 227930, 250723, 411265, 501446, 822530, 904783, 1253615, 1809566, 1891819, 2507230, 3783638, 4523915, 9047830, 9459095, 18918190, 20810009, 41620018, 104050045, 208100090]

約数ペア:

[(1, 208100090), (2, 104050045), (5, 41620018), (10, 20810009), (11, 18918190), (22, 9459095), (23, 9047830), (46, 4523915), (55, 3783638), (83, 2507230), (110, 1891819), (115, 1809566), (166, 1253615), (230, 904783), (253, 822530), (415, 501446), (506, 411265), (830, 250723), (913, 227930), (991, 209990), (1265, 164506), (1826, 113965), (1909, 109010), (1982, 104995), (2530, 82253), (3818, 54505), (4565, 45586), (4955, 41998), (9130, 22793), (9545, 21802), (9910, 20999), (10901, 19090)]