185317900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:643

約数の個数: 72

約数和(自身を含む): 422785440

約数和(自身を除く): 237467540

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 197, 230, 394, 409, 460, 575, 788, 818, 985, 1150, 1636, 1970, 2045, 2300, 3940, 4090, 4531, 4925, 8180, 9062, 9407, 9850, 10225, 18124, 18814, 19700, 20450, 22655, 37628, 40900, 45310, 47035, 80573, 90620, 94070, 113275, 161146, 188140, 226550, 235175, 322292, 402865, 453100, 470350, 805730, 940700, 1611460, 1853179, 2014325, 3706358, 4028650, 7412716, 8057300, 9265895, 18531790, 37063580, 46329475, 92658950, 185317900]

約数ペア:

[(1, 185317900), (2, 92658950), (4, 46329475), (5, 37063580), (10, 18531790), (20, 9265895), (23, 8057300), (25, 7412716), (46, 4028650), (50, 3706358), (92, 2014325), (100, 1853179), (115, 1611460), (197, 940700), (230, 805730), (394, 470350), (409, 453100), (460, 402865), (575, 322292), (788, 235175), (818, 226550), (985, 188140), (1150, 161146), (1636, 113275), (1970, 94070), (2045, 90620), (2300, 80573), (3940, 47035), (4090, 45310), (4531, 40900), (4925, 37628), (8180, 22655), (9062, 20450), (9407, 19700), (9850, 18814), (10225, 18124)]