205257070

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{283}}^1$

素因数の和:421

約数の個数: 64

約数和(自身を含む): 399349440

約数和(自身を除く): 194092370

約数列:

[1, 2, 5, 10, 29, 41, 58, 61, 82, 122, 145, 205, 283, 290, 305, 410, 566, 610, 1189, 1415, 1769, 2378, 2501, 2830, 3538, 5002, 5945, 8207, 8845, 11603, 11890, 12505, 16414, 17263, 17690, 23206, 25010, 34526, 41035, 58015, 72529, 82070, 86315, 116030, 145058, 172630, 336487, 362645, 500627, 672974, 707783, 725290, 1001254, 1415566, 1682435, 2503135, 3364870, 3538915, 5006270, 7077830, 20525707, 41051414, 102628535, 205257070]

約数ペア:

[(1, 205257070), (2, 102628535), (5, 41051414), (10, 20525707), (29, 7077830), (41, 5006270), (58, 3538915), (61, 3364870), (82, 2503135), (122, 1682435), (145, 1415566), (205, 1001254), (283, 725290), (290, 707783), (305, 672974), (410, 500627), (566, 362645), (610, 336487), (1189, 172630), (1415, 145058), (1769, 116030), (2378, 86315), (2501, 82070), (2830, 72529), (3538, 58015), (5002, 41035), (5945, 34526), (8207, 25010), (8845, 23206), (11603, 17690), (11890, 17263), (12505, 16414)]