25656560

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4517}}^1$

素因数の和:4601

約数の個数: 40

約数和(自身を含む): 60505056

約数和(自身を除く): 34848496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 4517, 5680, 9034, 18068, 22585, 36136, 45170, 72272, 90340, 180680, 320707, 361360, 641414, 1282828, 1603535, 2565656, 3207070, 5131312, 6414140, 12828280, 25656560]

約数ペア:

[(1, 25656560), (2, 12828280), (4, 6414140), (5, 5131312), (8, 3207070), (10, 2565656), (16, 1603535), (20, 1282828), (40, 641414), (71, 361360), (80, 320707), (142, 180680), (284, 90340), (355, 72272), (568, 45170), (710, 36136), (1136, 22585), (1420, 18068), (2840, 9034), (4517, 5680)]