201667420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1\times {\mathrm{557}}^1$

素因数の和:1030

約数の個数: 48

約数和(自身を含む): 435159648

約数和(自身を除く): 233492228

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 421, 430, 557, 842, 860, 1114, 1684, 2105, 2228, 2785, 4210, 5570, 8420, 11140, 18103, 23951, 36206, 47902, 72412, 90515, 95804, 119755, 181030, 234497, 239510, 362060, 468994, 479020, 937988, 1172485, 2344970, 4689940, 10083371, 20166742, 40333484, 50416855, 100833710, 201667420]

約数ペア:

[(1, 201667420), (2, 100833710), (4, 50416855), (5, 40333484), (10, 20166742), (20, 10083371), (43, 4689940), (86, 2344970), (172, 1172485), (215, 937988), (421, 479020), (430, 468994), (557, 362060), (842, 239510), (860, 234497), (1114, 181030), (1684, 119755), (2105, 95804), (2228, 90515), (2785, 72412), (4210, 47902), (5570, 36206), (8420, 23951), (11140, 18103)]