7561840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1$

素因数の和:698

約数の個数: 80

約数和(自身を含む): 20686176

約数和(自身を除く): 13124336

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 661, 715, 880, 1040, 1144, 1322, 1430, 2288, 2644, 2860, 3305, 5288, 5720, 6610, 7271, 8593, 10576, 11440, 13220, 14542, 17186, 26440, 29084, 34372, 36355, 42965, 52880, 58168, 68744, 72710, 85930, 94523, 116336, 137488, 145420, 171860, 189046, 290840, 343720, 378092, 472615, 581680, 687440, 756184, 945230, 1512368, 1890460, 3780920, 7561840]

約数ペア:

[(1, 7561840), (2, 3780920), (4, 1890460), (5, 1512368), (8, 945230), (10, 756184), (11, 687440), (13, 581680), (16, 472615), (20, 378092), (22, 343720), (26, 290840), (40, 189046), (44, 171860), (52, 145420), (55, 137488), (65, 116336), (80, 94523), (88, 85930), (104, 72710), (110, 68744), (130, 58168), (143, 52880), (176, 42965), (208, 36355), (220, 34372), (260, 29084), (286, 26440), (440, 17186), (520, 14542), (572, 13220), (661, 11440), (715, 10576), (880, 8593), (1040, 7271), (1144, 6610), (1322, 5720), (1430, 5288), (2288, 3305), (2644, 2860)]