127681840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{11161}}^1$

素因数の和:11198

約数の個数: 80

約数和(自身を含む): 348790176

約数和(自身を除く): 221108336

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, 715, 880, 1040, 1144, 1430, 2288, 2860, 5720, 11161, 11440, 22322, 44644, 55805, 89288, 111610, 122771, 145093, 178576, 223220, 245542, 290186, 446440, 491084, 580372, 613855, 725465, 892880, 982168, 1160744, 1227710, 1450930, 1596023, 1964336, 2321488, 2455420, 2901860, 3192046, 4910840, 5803720, 6384092, 7980115, 9821680, 11607440, 12768184, 15960230, 25536368, 31920460, 63840920, 127681840]

約数ペア:

[(1, 127681840), (2, 63840920), (4, 31920460), (5, 25536368), (8, 15960230), (10, 12768184), (11, 11607440), (13, 9821680), (16, 7980115), (20, 6384092), (22, 5803720), (26, 4910840), (40, 3192046), (44, 2901860), (52, 2455420), (55, 2321488), (65, 1964336), (80, 1596023), (88, 1450930), (104, 1227710), (110, 1160744), (130, 982168), (143, 892880), (176, 725465), (208, 613855), (220, 580372), (260, 491084), (286, 446440), (440, 290186), (520, 245542), (572, 223220), (715, 178576), (880, 145093), (1040, 122771), (1144, 111610), (1430, 89288), (2288, 55805), (2860, 44644), (5720, 22322), (11161, 11440)]