989897456

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{42463}}^1$

素因数の和:42549

約数の個数: 40

約数和(自身を含む): 2021965824

約数和(自身を除く): 1032068368

約数列:

[1, 2, 4, 8, 16, 31, 47, 62, 94, 124, 188, 248, 376, 496, 752, 1457, 2914, 5828, 11656, 23312, 42463, 84926, 169852, 339704, 679408, 1316353, 1995761, 2632706, 3991522, 5265412, 7983044, 10530824, 15966088, 21061648, 31932176, 61868591, 123737182, 247474364, 494948728, 989897456]

約数ペア:

[(1, 989897456), (2, 494948728), (4, 247474364), (8, 123737182), (16, 61868591), (31, 31932176), (47, 21061648), (62, 15966088), (94, 10530824), (124, 7983044), (188, 5265412), (248, 3991522), (376, 2632706), (496, 1995761), (752, 1316353), (1457, 679408), (2914, 339704), (5828, 169852), (11656, 84926), (23312, 42463)]