20122045804

素因数分解:

$2^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{409}}^1\times {\mathrm{2437}}^1$

素因数の和:2967

約数の個数: 72

約数和(自身を含む): 41478571680

約数和(自身を除く): 21356525876

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 103, 196, 206, 409, 412, 721, 818, 1442, 1636, 2437, 2863, 2884, 4874, 5047, 5726, 9748, 10094, 11452, 17059, 20041, 20188, 34118, 40082, 42127, 68236, 80164, 84254, 119413, 168508, 238826, 251011, 294889, 477652, 502022, 589778, 996733, 1004044, 1179556, 1757077, 1993466, 2064223, 3514154, 3986932, 4128446, 6977131, 7028308, 8256892, 12299539, 13954262, 24599078, 27908524, 48839917, 49198156, 97679834, 102663499, 195359668, 205326998, 410653996, 718644493, 1437288986, 2874577972, 5030511451, 10061022902, 20122045804]

約数ペア:

[(1, 20122045804), (2, 10061022902), (4, 5030511451), (7, 2874577972), (14, 1437288986), (28, 718644493), (49, 410653996), (98, 205326998), (103, 195359668), (196, 102663499), (206, 97679834), (409, 49198156), (412, 48839917), (721, 27908524), (818, 24599078), (1442, 13954262), (1636, 12299539), (2437, 8256892), (2863, 7028308), (2884, 6977131), (4874, 4128446), (5047, 3986932), (5726, 3514154), (9748, 2064223), (10094, 1993466), (11452, 1757077), (17059, 1179556), (20041, 1004044), (20188, 996733), (34118, 589778), (40082, 502022), (42127, 477652), (68236, 294889), (80164, 251011), (84254, 238826), (119413, 168508)]