178848520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1693}}^1$

素因数の和:1862

約数の個数: 64

約数和(自身を含む): 426888000

約数和(自身を除く): 248039480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 139, 152, 190, 278, 380, 556, 695, 760, 1112, 1390, 1693, 2641, 2780, 3386, 5282, 5560, 6772, 8465, 10564, 13205, 13544, 16930, 21128, 26410, 32167, 33860, 52820, 64334, 67720, 105640, 128668, 160835, 235327, 257336, 321670, 470654, 643340, 941308, 1176635, 1286680, 1882616, 2353270, 4471213, 4706540, 8942426, 9413080, 17884852, 22356065, 35769704, 44712130, 89424260, 178848520]

約数ペア:

[(1, 178848520), (2, 89424260), (4, 44712130), (5, 35769704), (8, 22356065), (10, 17884852), (19, 9413080), (20, 8942426), (38, 4706540), (40, 4471213), (76, 2353270), (95, 1882616), (139, 1286680), (152, 1176635), (190, 941308), (278, 643340), (380, 470654), (556, 321670), (695, 257336), (760, 235327), (1112, 160835), (1390, 128668), (1693, 105640), (2641, 67720), (2780, 64334), (3386, 52820), (5282, 33860), (5560, 32167), (6772, 26410), (8465, 21128), (10564, 16930), (13205, 13544)]