204522980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{983}}^1$

素因数の和:1196

約数の個数: 48

約数和(自身を含む): 438407424

約数和(自身を除く): 233884444

約数列:

[1, 2, 4, 5, 10, 20, 101, 103, 202, 206, 404, 412, 505, 515, 983, 1010, 1030, 1966, 2020, 2060, 3932, 4915, 9830, 10403, 19660, 20806, 41612, 52015, 99283, 101249, 104030, 198566, 202498, 208060, 397132, 404996, 496415, 506245, 992830, 1012490, 1985660, 2024980, 10226149, 20452298, 40904596, 51130745, 102261490, 204522980]

約数ペア:

[(1, 204522980), (2, 102261490), (4, 51130745), (5, 40904596), (10, 20452298), (20, 10226149), (101, 2024980), (103, 1985660), (202, 1012490), (206, 992830), (404, 506245), (412, 496415), (505, 404996), (515, 397132), (983, 208060), (1010, 202498), (1030, 198566), (1966, 104030), (2020, 101249), (2060, 99283), (3932, 52015), (4915, 41612), (9830, 20806), (10403, 19660)]