20286138

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 45308160

約数和(自身を除く): 25022022

約数列:

[1, 2, 3, 6, 23, 29, 37, 46, 58, 69, 74, 87, 111, 137, 138, 174, 222, 274, 411, 667, 822, 851, 1073, 1334, 1702, 2001, 2146, 2553, 3151, 3219, 3973, 4002, 5069, 5106, 6302, 6438, 7946, 9453, 10138, 11919, 15207, 18906, 23838, 24679, 30414, 49358, 74037, 91379, 116587, 147001, 148074, 182758, 233174, 274137, 294002, 349761, 441003, 548274, 699522, 882006, 3381023, 6762046, 10143069, 20286138]

約数ペア:

[(1, 20286138), (2, 10143069), (3, 6762046), (6, 3381023), (23, 882006), (29, 699522), (37, 548274), (46, 441003), (58, 349761), (69, 294002), (74, 274137), (87, 233174), (111, 182758), (137, 148074), (138, 147001), (174, 116587), (222, 91379), (274, 74037), (411, 49358), (667, 30414), (822, 24679), (851, 23838), (1073, 18906), (1334, 15207), (1702, 11919), (2001, 10138), (2146, 9453), (2553, 7946), (3151, 6438), (3219, 6302), (3973, 5106), (4002, 5069)]