2149376440

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{553963}}^1$

素因数の和:554071

約数の個数: 32

約数和(自身を含む): 4885962480

約数和(自身を除く): 2736586040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 553963, 1107926, 2215852, 2769815, 4431704, 5539630, 11079260, 22158520, 53734411, 107468822, 214937644, 268672055, 429875288, 537344110, 1074688220, 2149376440]

約数ペア:

[(1, 2149376440), (2, 1074688220), (4, 537344110), (5, 429875288), (8, 268672055), (10, 214937644), (20, 107468822), (40, 53734411), (97, 22158520), (194, 11079260), (388, 5539630), (485, 4431704), (776, 2769815), (970, 2215852), (1940, 1107926), (3880, 553963)]