126391280

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:546

約数の個数: 80

約数和(自身を含む): 306810720

約数和(自身を除く): 180419440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 157, 232, 290, 314, 347, 464, 580, 628, 694, 785, 1160, 1256, 1388, 1570, 1735, 2320, 2512, 2776, 3140, 3470, 4553, 5552, 6280, 6940, 9106, 10063, 12560, 13880, 18212, 20126, 22765, 27760, 36424, 40252, 45530, 50315, 54479, 72848, 80504, 91060, 100630, 108958, 161008, 182120, 201260, 217916, 272395, 364240, 402520, 435832, 544790, 805040, 871664, 1089580, 1579891, 2179160, 3159782, 4358320, 6319564, 7899455, 12639128, 15798910, 25278256, 31597820, 63195640, 126391280]

約数ペア:

[(1, 126391280), (2, 63195640), (4, 31597820), (5, 25278256), (8, 15798910), (10, 12639128), (16, 7899455), (20, 6319564), (29, 4358320), (40, 3159782), (58, 2179160), (80, 1579891), (116, 1089580), (145, 871664), (157, 805040), (232, 544790), (290, 435832), (314, 402520), (347, 364240), (464, 272395), (580, 217916), (628, 201260), (694, 182120), (785, 161008), (1160, 108958), (1256, 100630), (1388, 91060), (1570, 80504), (1735, 72848), (2320, 54479), (2512, 50315), (2776, 45530), (3140, 40252), (3470, 36424), (4553, 27760), (5552, 22765), (6280, 20126), (6940, 18212), (9106, 13880), (10063, 12560)]