148147940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1979}}^1$

素因数の和:2204

約数の個数: 48

約数和(自身を含む): 329313600

約数和(自身を除く): 181165660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 197, 380, 394, 788, 985, 1970, 1979, 3743, 3940, 3958, 7486, 7916, 9895, 14972, 18715, 19790, 37430, 37601, 39580, 74860, 75202, 150404, 188005, 376010, 389863, 752020, 779726, 1559452, 1949315, 3898630, 7407397, 7797260, 14814794, 29629588, 37036985, 74073970, 148147940]

約数ペア:

[(1, 148147940), (2, 74073970), (4, 37036985), (5, 29629588), (10, 14814794), (19, 7797260), (20, 7407397), (38, 3898630), (76, 1949315), (95, 1559452), (190, 779726), (197, 752020), (380, 389863), (394, 376010), (788, 188005), (985, 150404), (1970, 75202), (1979, 74860), (3743, 39580), (3940, 37601), (3958, 37430), (7486, 19790), (7916, 18715), (9895, 14972)]