18442926440

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1\times {\mathrm{9421}}^1$

素因数の和:9990

約数の個数: 64

約数和(自身を含む): 41975010000

約数和(自身を除く): 23532083560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 449, 545, 872, 898, 1090, 1796, 2180, 2245, 3592, 4360, 4490, 8980, 9421, 17960, 18842, 37684, 47105, 48941, 75368, 94210, 97882, 188420, 195764, 244705, 376840, 391528, 489410, 978820, 1026889, 1957640, 2053778, 4107556, 4230029, 5134445, 8215112, 8460058, 10268890, 16920116, 20537780, 21150145, 33840232, 41075560, 42300290, 84600580, 169201160, 461073161, 922146322, 1844292644, 2305365805, 3688585288, 4610731610, 9221463220, 18442926440]

約数ペア:

[(1, 18442926440), (2, 9221463220), (4, 4610731610), (5, 3688585288), (8, 2305365805), (10, 1844292644), (20, 922146322), (40, 461073161), (109, 169201160), (218, 84600580), (436, 42300290), (449, 41075560), (545, 33840232), (872, 21150145), (898, 20537780), (1090, 16920116), (1796, 10268890), (2180, 8460058), (2245, 8215112), (3592, 5134445), (4360, 4230029), (4490, 4107556), (8980, 2053778), (9421, 1957640), (17960, 1026889), (18842, 978820), (37684, 489410), (47105, 391528), (48941, 376840), (75368, 244705), (94210, 195764), (97882, 188420)]