16404767980

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{461}}^1\times {\mathrm{8941}}^1$

素因数の和:9610

約数の個数: 48

約数和(自身を含む): 34702113600

約数和(自身を除く): 18297345620

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 461, 796, 922, 995, 1844, 1990, 2305, 3980, 4610, 8941, 9220, 17882, 35764, 44705, 89410, 91739, 178820, 183478, 366956, 458695, 917390, 1779259, 1834780, 3558518, 4121801, 7117036, 8243602, 8896295, 16487204, 17792590, 20609005, 35585180, 41218010, 82436020, 820238399, 1640476798, 3280953596, 4101191995, 8202383990, 16404767980]

約数ペア:

[(1, 16404767980), (2, 8202383990), (4, 4101191995), (5, 3280953596), (10, 1640476798), (20, 820238399), (199, 82436020), (398, 41218010), (461, 35585180), (796, 20609005), (922, 17792590), (995, 16487204), (1844, 8896295), (1990, 8243602), (2305, 7117036), (3980, 4121801), (4610, 3558518), (8941, 1834780), (9220, 1779259), (17882, 917390), (35764, 458695), (44705, 366956), (89410, 183478), (91739, 178820)]