172547440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{661}}^1$

素因数の和:938

約数の個数: 80

約数和(自身を含む): 434409696

約数和(自身を除く): 261862256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 251, 260, 502, 520, 661, 1004, 1040, 1255, 1322, 2008, 2510, 2644, 3263, 3305, 4016, 5020, 5288, 6526, 6610, 8593, 10040, 10576, 13052, 13220, 16315, 17186, 20080, 26104, 26440, 32630, 34372, 42965, 52208, 52880, 65260, 68744, 85930, 130520, 137488, 165911, 171860, 261040, 331822, 343720, 663644, 687440, 829555, 1327288, 1659110, 2156843, 2654576, 3318220, 4313686, 6636440, 8627372, 10784215, 13272880, 17254744, 21568430, 34509488, 43136860, 86273720, 172547440]

約数ペア:

[(1, 172547440), (2, 86273720), (4, 43136860), (5, 34509488), (8, 21568430), (10, 17254744), (13, 13272880), (16, 10784215), (20, 8627372), (26, 6636440), (40, 4313686), (52, 3318220), (65, 2654576), (80, 2156843), (104, 1659110), (130, 1327288), (208, 829555), (251, 687440), (260, 663644), (502, 343720), (520, 331822), (661, 261040), (1004, 171860), (1040, 165911), (1255, 137488), (1322, 130520), (2008, 85930), (2510, 68744), (2644, 65260), (3263, 52880), (3305, 52208), (4016, 42965), (5020, 34372), (5288, 32630), (6526, 26440), (6610, 26104), (8593, 20080), (10040, 17186), (10576, 16315), (13052, 13220)]