78657280

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 211186080

約数和(自身を除く): 132528800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 32, 40, 52, 58, 64, 65, 80, 104, 116, 128, 130, 145, 160, 163, 208, 232, 256, 260, 290, 320, 326, 377, 416, 464, 520, 580, 640, 652, 754, 815, 832, 928, 1040, 1160, 1280, 1304, 1508, 1630, 1664, 1856, 1885, 2080, 2119, 2320, 2608, 3016, 3260, 3328, 3712, 3770, 4160, 4238, 4640, 4727, 5216, 6032, 6520, 7424, 7540, 8320, 8476, 9280, 9454, 10432, 10595, 12064, 13040, 15080, 16640, 16952, 18560, 18908, 20864, 21190, 23635, 24128, 26080, 30160, 33904, 37120, 37816, 41728, 42380, 47270, 48256, 52160, 60320, 61451, 67808, 75632, 84760, 94540, 96512, 104320, 120640, 122902, 135616, 151264, 169520, 189080, 208640, 241280, 245804, 271232, 302528, 307255, 339040, 378160, 482560, 491608, 542464, 605056, 614510, 678080, 756320, 983216, 1210112, 1229020, 1356160, 1512640, 1966432, 2458040, 2712320, 3025280, 3932864, 4916080, 6050560, 7865728, 9832160, 15731456, 19664320, 39328640, 78657280]

約数ペア:

[(1, 78657280), (2, 39328640), (4, 19664320), (5, 15731456), (8, 9832160), (10, 7865728), (13, 6050560), (16, 4916080), (20, 3932864), (26, 3025280), (29, 2712320), (32, 2458040), (40, 1966432), (52, 1512640), (58, 1356160), (64, 1229020), (65, 1210112), (80, 983216), (104, 756320), (116, 678080), (128, 614510), (130, 605056), (145, 542464), (160, 491608), (163, 482560), (208, 378160), (232, 339040), (256, 307255), (260, 302528), (290, 271232), (320, 245804), (326, 241280), (377, 208640), (416, 189080), (464, 169520), (520, 151264), (580, 135616), (640, 122902), (652, 120640), (754, 104320), (815, 96512), (832, 94540), (928, 84760), (1040, 75632), (1160, 67808), (1280, 61451), (1304, 60320), (1508, 52160), (1630, 48256), (1664, 47270), (1856, 42380), (1885, 41728), (2080, 37816), (2119, 37120), (2320, 33904), (2608, 30160), (3016, 26080), (3260, 24128), (3328, 23635), (3712, 21190), (3770, 20864), (4160, 18908), (4238, 18560), (4640, 16952), (4727, 16640), (5216, 15080), (6032, 13040), (6520, 12064), (7424, 10595), (7540, 10432), (8320, 9454), (8476, 9280)]