28417040

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5003}}^1$

素因数の和:5087

約数の個数: 40

約数和(自身を含む): 67013568

約数和(自身を除く): 38596528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5003, 5680, 10006, 20012, 25015, 40024, 50030, 80048, 100060, 200120, 355213, 400240, 710426, 1420852, 1776065, 2841704, 3552130, 5683408, 7104260, 14208520, 28417040]

約数ペア:

[(1, 28417040), (2, 14208520), (4, 7104260), (5, 5683408), (8, 3552130), (10, 2841704), (16, 1776065), (20, 1420852), (40, 710426), (71, 400240), (80, 355213), (142, 200120), (284, 100060), (355, 80048), (568, 50030), (710, 40024), (1136, 25015), (1420, 20012), (2840, 10006), (5003, 5680)]