145049840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{661}}^1$

素因数の和:898

約数の個数: 80

約数和(自身を含む): 365455776

約数和(自身を除く): 220405936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 211, 260, 422, 520, 661, 844, 1040, 1055, 1322, 1688, 2110, 2644, 2743, 3305, 3376, 4220, 5288, 5486, 6610, 8440, 8593, 10576, 10972, 13220, 13715, 16880, 17186, 21944, 26440, 27430, 34372, 42965, 43888, 52880, 54860, 68744, 85930, 109720, 137488, 139471, 171860, 219440, 278942, 343720, 557884, 687440, 697355, 1115768, 1394710, 1813123, 2231536, 2789420, 3626246, 5578840, 7252492, 9065615, 11157680, 14504984, 18131230, 29009968, 36262460, 72524920, 145049840]

約数ペア:

[(1, 145049840), (2, 72524920), (4, 36262460), (5, 29009968), (8, 18131230), (10, 14504984), (13, 11157680), (16, 9065615), (20, 7252492), (26, 5578840), (40, 3626246), (52, 2789420), (65, 2231536), (80, 1813123), (104, 1394710), (130, 1115768), (208, 697355), (211, 687440), (260, 557884), (422, 343720), (520, 278942), (661, 219440), (844, 171860), (1040, 139471), (1055, 137488), (1322, 109720), (1688, 85930), (2110, 68744), (2644, 54860), (2743, 52880), (3305, 43888), (3376, 42965), (4220, 34372), (5288, 27430), (5486, 26440), (6610, 21944), (8440, 17186), (8593, 16880), (10576, 13715), (10972, 13220)]