199404920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:597

約数の個数: 128

約数和(自身を含む): 535610880

約数和(自身を除く): 336205960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 71, 88, 104, 110, 130, 142, 143, 220, 260, 284, 286, 355, 440, 491, 520, 568, 572, 710, 715, 781, 923, 982, 1144, 1420, 1430, 1562, 1846, 1964, 2455, 2840, 2860, 3124, 3692, 3905, 3928, 4615, 4910, 5401, 5720, 6248, 6383, 7384, 7810, 9230, 9820, 10153, 10802, 12766, 15620, 18460, 19640, 20306, 21604, 25532, 27005, 31240, 31915, 34861, 36920, 40612, 43208, 50765, 51064, 54010, 63830, 69722, 70213, 81224, 101530, 108020, 127660, 139444, 140426, 174305, 203060, 216040, 255320, 278888, 280852, 348610, 351065, 383471, 406120, 453193, 561704, 697220, 702130, 766942, 906386, 1394440, 1404260, 1533884, 1812772, 1917355, 2265965, 2808520, 3067768, 3625544, 3834710, 4531930, 4985123, 7669420, 9063860, 9970246, 15338840, 18127720, 19940492, 24925615, 39880984, 49851230, 99702460, 199404920]

約数ペア:

[(1, 199404920), (2, 99702460), (4, 49851230), (5, 39880984), (8, 24925615), (10, 19940492), (11, 18127720), (13, 15338840), (20, 9970246), (22, 9063860), (26, 7669420), (40, 4985123), (44, 4531930), (52, 3834710), (55, 3625544), (65, 3067768), (71, 2808520), (88, 2265965), (104, 1917355), (110, 1812772), (130, 1533884), (142, 1404260), (143, 1394440), (220, 906386), (260, 766942), (284, 702130), (286, 697220), (355, 561704), (440, 453193), (491, 406120), (520, 383471), (568, 351065), (572, 348610), (710, 280852), (715, 278888), (781, 255320), (923, 216040), (982, 203060), (1144, 174305), (1420, 140426), (1430, 139444), (1562, 127660), (1846, 108020), (1964, 101530), (2455, 81224), (2840, 70213), (2860, 69722), (3124, 63830), (3692, 54010), (3905, 51064), (3928, 50765), (4615, 43208), (4910, 40612), (5401, 36920), (5720, 34861), (6248, 31915), (6383, 31240), (7384, 27005), (7810, 25532), (9230, 21604), (9820, 20306), (10153, 19640), (10802, 18460), (12766, 15620)]