178668880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1153}}^1$

素因数の和:1328

約数の個数: 80

約数和(自身を含む): 450752400

約数和(自身を除く): 272083520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 149, 208, 260, 298, 520, 596, 745, 1040, 1153, 1192, 1490, 1937, 2306, 2384, 2980, 3874, 4612, 5765, 5960, 7748, 9224, 9685, 11530, 11920, 14989, 15496, 18448, 19370, 23060, 29978, 30992, 38740, 46120, 59956, 74945, 77480, 92240, 119912, 149890, 154960, 171797, 239824, 299780, 343594, 599560, 687188, 858985, 1199120, 1374376, 1717970, 2233361, 2748752, 3435940, 4466722, 6871880, 8933444, 11166805, 13743760, 17866888, 22333610, 35733776, 44667220, 89334440, 178668880]

約数ペア:

[(1, 178668880), (2, 89334440), (4, 44667220), (5, 35733776), (8, 22333610), (10, 17866888), (13, 13743760), (16, 11166805), (20, 8933444), (26, 6871880), (40, 4466722), (52, 3435940), (65, 2748752), (80, 2233361), (104, 1717970), (130, 1374376), (149, 1199120), (208, 858985), (260, 687188), (298, 599560), (520, 343594), (596, 299780), (745, 239824), (1040, 171797), (1153, 154960), (1192, 149890), (1490, 119912), (1937, 92240), (2306, 77480), (2384, 74945), (2980, 59956), (3874, 46120), (4612, 38740), (5765, 30992), (5960, 29978), (7748, 23060), (9224, 19370), (9685, 18448), (11530, 15496), (11920, 14989)]