86821420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{11701}}^1$

素因数の和:11770

約数の個数: 48

約数和(自身を含む): 212321088

約数和(自身を除く): 125499668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 7420, 11701, 23402, 46804, 58505, 81907, 117010, 163814, 234020, 327628, 409535, 620153, 819070, 1240306, 1638140, 2480612, 3100765, 4341071, 6201530, 8682142, 12403060, 17364284, 21705355, 43410710, 86821420]

約数ペア:

[(1, 86821420), (2, 43410710), (4, 21705355), (5, 17364284), (7, 12403060), (10, 8682142), (14, 6201530), (20, 4341071), (28, 3100765), (35, 2480612), (53, 1638140), (70, 1240306), (106, 819070), (140, 620153), (212, 409535), (265, 327628), (371, 234020), (530, 163814), (742, 117010), (1060, 81907), (1484, 58505), (1855, 46804), (3710, 23402), (7420, 11701)]