164756440

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{42463}}^1$

素因数の和:42571

約数の個数: 32

約数和(自身を含む): 374532480

約数和(自身を除く): 209776040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 42463, 84926, 169852, 212315, 339704, 424630, 849260, 1698520, 4118911, 8237822, 16475644, 20594555, 32951288, 41189110, 82378220, 164756440]

約数ペア:

[(1, 164756440), (2, 82378220), (4, 41189110), (5, 32951288), (8, 20594555), (10, 16475644), (20, 8237822), (40, 4118911), (97, 1698520), (194, 849260), (388, 424630), (485, 339704), (776, 212315), (970, 169852), (1940, 84926), (3880, 42463)]