81049360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144731}}^1$

素因数の和:144751

約数の個数: 40

約数和(自身を含む): 215361216

約数和(自身を除く): 134311856

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144731, 289462, 578924, 723655, 1013117, 1157848, 1447310, 2026234, 2315696, 2894620, 4052468, 5065585, 5789240, 8104936, 10131170, 11578480, 16209872, 20262340, 40524680, 81049360]

約数ペア:

[(1, 81049360), (2, 40524680), (4, 20262340), (5, 16209872), (7, 11578480), (8, 10131170), (10, 8104936), (14, 5789240), (16, 5065585), (20, 4052468), (28, 2894620), (35, 2315696), (40, 2026234), (56, 1447310), (70, 1157848), (80, 1013117), (112, 723655), (140, 578924), (280, 289462), (560, 144731)]