19054120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 45360000

約数和(自身を除く): 26305880

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 139, 149, 184, 230, 278, 298, 460, 556, 596, 695, 745, 920, 1112, 1192, 1390, 1490, 2780, 2980, 3197, 3427, 5560, 5960, 6394, 6854, 12788, 13708, 15985, 17135, 20711, 25576, 27416, 31970, 34270, 41422, 63940, 68540, 82844, 103555, 127880, 137080, 165688, 207110, 414220, 476353, 828440, 952706, 1905412, 2381765, 3810824, 4763530, 9527060, 19054120]

約数ペア:

[(1, 19054120), (2, 9527060), (4, 4763530), (5, 3810824), (8, 2381765), (10, 1905412), (20, 952706), (23, 828440), (40, 476353), (46, 414220), (92, 207110), (115, 165688), (139, 137080), (149, 127880), (184, 103555), (230, 82844), (278, 68540), (298, 63940), (460, 41422), (556, 34270), (596, 31970), (695, 27416), (745, 25576), (920, 20711), (1112, 17135), (1192, 15985), (1390, 13708), (1490, 12788), (2780, 6854), (2980, 6394), (3197, 5960), (3427, 5560)]