199987890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{1061}}^1$

素因数の和:1235

約数の個数: 64

約数和(自身を含む): 493039872

約数和(自身を除く): 293051982

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 103, 122, 183, 206, 305, 309, 366, 515, 610, 618, 915, 1030, 1061, 1545, 1830, 2122, 3090, 3183, 5305, 6283, 6366, 10610, 12566, 15915, 18849, 31415, 31830, 37698, 62830, 64721, 94245, 109283, 129442, 188490, 194163, 218566, 323605, 327849, 388326, 546415, 647210, 655698, 970815, 1092830, 1639245, 1941630, 3278490, 6666263, 13332526, 19998789, 33331315, 39997578, 66662630, 99993945, 199987890]

約数ペア:

[(1, 199987890), (2, 99993945), (3, 66662630), (5, 39997578), (6, 33331315), (10, 19998789), (15, 13332526), (30, 6666263), (61, 3278490), (103, 1941630), (122, 1639245), (183, 1092830), (206, 970815), (305, 655698), (309, 647210), (366, 546415), (515, 388326), (610, 327849), (618, 323605), (915, 218566), (1030, 194163), (1061, 188490), (1545, 129442), (1830, 109283), (2122, 94245), (3090, 64721), (3183, 62830), (5305, 37698), (6283, 31830), (6366, 31415), (10610, 18849), (12566, 15915)]