414640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:157

約数の個数: 40

約数和(自身を含む): 991008

約数和(自身を除く): 576368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 73, 80, 142, 146, 284, 292, 355, 365, 568, 584, 710, 730, 1136, 1168, 1420, 1460, 2840, 2920, 5183, 5680, 5840, 10366, 20732, 25915, 41464, 51830, 82928, 103660, 207320, 414640]

約数ペア:

[(1, 414640), (2, 207320), (4, 103660), (5, 82928), (8, 51830), (10, 41464), (16, 25915), (20, 20732), (40, 10366), (71, 5840), (73, 5680), (80, 5183), (142, 2920), (146, 2840), (284, 1460), (292, 1420), (355, 1168), (365, 1136), (568, 730), (584, 710)]