18720030

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{919}}^1$

素因数の和:1033

約数の個数: 64

約数和(自身を含む): 51932160

約数和(自身を除く): 33212130

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 97, 105, 194, 210, 291, 485, 582, 679, 919, 970, 1358, 1455, 1838, 2037, 2757, 2910, 3395, 4074, 4595, 5514, 6433, 6790, 9190, 10185, 12866, 13785, 19299, 20370, 27570, 32165, 38598, 64330, 89143, 96495, 178286, 192990, 267429, 445715, 534858, 624001, 891430, 1248002, 1337145, 1872003, 2674290, 3120005, 3744006, 6240010, 9360015, 18720030]

約数ペア:

[(1, 18720030), (2, 9360015), (3, 6240010), (5, 3744006), (6, 3120005), (7, 2674290), (10, 1872003), (14, 1337145), (15, 1248002), (21, 891430), (30, 624001), (35, 534858), (42, 445715), (70, 267429), (97, 192990), (105, 178286), (194, 96495), (210, 89143), (291, 64330), (485, 38598), (582, 32165), (679, 27570), (919, 20370), (970, 19299), (1358, 13785), (1455, 12866), (1838, 10185), (2037, 9190), (2757, 6790), (2910, 6433), (3395, 5514), (4074, 4595)]