2051217420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{697693}}^1$

素因数の和:697719

約数の個数: 72

約数和(自身を含む): 6681117744

約数和(自身を除く): 4629900324

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 697693, 1395386, 2093079, 2790772, 3488465, 4186158, 4883851, 6976930, 8372316, 9767702, 10465395, 13953860, 14651553, 19535404, 20930790, 24419255, 29303106, 34186957, 41861580, 48838510, 58606212, 68373914, 73257765, 97677020, 102560871, 136747828, 146515530, 170934785, 205121742, 293031060, 341869570, 410243484, 512804355, 683739140, 1025608710, 2051217420]

約数ペア:

[(1, 2051217420), (2, 1025608710), (3, 683739140), (4, 512804355), (5, 410243484), (6, 341869570), (7, 293031060), (10, 205121742), (12, 170934785), (14, 146515530), (15, 136747828), (20, 102560871), (21, 97677020), (28, 73257765), (30, 68373914), (35, 58606212), (42, 48838510), (49, 41861580), (60, 34186957), (70, 29303106), (84, 24419255), (98, 20930790), (105, 19535404), (140, 14651553), (147, 13953860), (196, 10465395), (210, 9767702), (245, 8372316), (294, 6976930), (420, 4883851), (490, 4186158), (588, 3488465), (735, 2790772), (980, 2093079), (1470, 1395386), (2940, 697693)]