19702480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{233}}^1$

素因数の和:404

約数の個数: 80

約数和(自身を含む): 52925184

約数和(自身を除く): 33222704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 151, 233, 280, 302, 466, 560, 604, 755, 932, 1057, 1165, 1208, 1510, 1631, 1864, 2114, 2330, 2416, 3020, 3262, 3728, 4228, 4660, 5285, 6040, 6524, 8155, 8456, 9320, 10570, 12080, 13048, 16310, 16912, 18640, 21140, 26096, 32620, 35183, 42280, 65240, 70366, 84560, 130480, 140732, 175915, 246281, 281464, 351830, 492562, 562928, 703660, 985124, 1231405, 1407320, 1970248, 2462810, 2814640, 3940496, 4925620, 9851240, 19702480]

約数ペア:

[(1, 19702480), (2, 9851240), (4, 4925620), (5, 3940496), (7, 2814640), (8, 2462810), (10, 1970248), (14, 1407320), (16, 1231405), (20, 985124), (28, 703660), (35, 562928), (40, 492562), (56, 351830), (70, 281464), (80, 246281), (112, 175915), (140, 140732), (151, 130480), (233, 84560), (280, 70366), (302, 65240), (466, 42280), (560, 35183), (604, 32620), (755, 26096), (932, 21140), (1057, 18640), (1165, 16912), (1208, 16310), (1510, 13048), (1631, 12080), (1864, 10570), (2114, 9320), (2330, 8456), (2416, 8155), (3020, 6524), (3262, 6040), (3728, 5285), (4228, 4660)]