20654190

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{593}}^1$

素因数の和:655

約数の個数: 80

約数和(自身を含む): 56924208

約数和(自身を除く): 36270018

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 43, 45, 54, 81, 86, 90, 129, 135, 162, 215, 258, 270, 387, 405, 430, 593, 645, 774, 810, 1161, 1186, 1290, 1779, 1935, 2322, 2965, 3483, 3558, 3870, 5337, 5805, 5930, 6966, 8895, 10674, 11610, 16011, 17415, 17790, 25499, 26685, 32022, 34830, 48033, 50998, 53370, 76497, 80055, 96066, 127495, 152994, 160110, 229491, 240165, 254990, 382485, 458982, 480330, 688473, 764970, 1147455, 1376946, 2065419, 2294910, 3442365, 4130838, 6884730, 10327095, 20654190]

約数ペア:

[(1, 20654190), (2, 10327095), (3, 6884730), (5, 4130838), (6, 3442365), (9, 2294910), (10, 2065419), (15, 1376946), (18, 1147455), (27, 764970), (30, 688473), (43, 480330), (45, 458982), (54, 382485), (81, 254990), (86, 240165), (90, 229491), (129, 160110), (135, 152994), (162, 127495), (215, 96066), (258, 80055), (270, 76497), (387, 53370), (405, 50998), (430, 48033), (593, 34830), (645, 32022), (774, 26685), (810, 25499), (1161, 17790), (1186, 17415), (1290, 16011), (1779, 11610), (1935, 10674), (2322, 8895), (2965, 6966), (3483, 5930), (3558, 5805), (3870, 5337)]