402242720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:379

約数の個数: 144

約数和(自身を含む): 1061786880

約数和(自身を除く): 659544160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 79, 80, 88, 110, 121, 158, 160, 176, 220, 242, 263, 316, 352, 395, 440, 484, 526, 605, 632, 790, 869, 880, 968, 1052, 1210, 1264, 1315, 1580, 1738, 1760, 1936, 2104, 2420, 2528, 2630, 2893, 3160, 3476, 3872, 4208, 4345, 4840, 5260, 5786, 6320, 6952, 8416, 8690, 9559, 9680, 10520, 11572, 12640, 13904, 14465, 17380, 19118, 19360, 20777, 21040, 23144, 27808, 28930, 31823, 34760, 38236, 41554, 42080, 46288, 47795, 57860, 63646, 69520, 76472, 83108, 92576, 95590, 103885, 115720, 127292, 139040, 152944, 159115, 166216, 191180, 207770, 228547, 231440, 254584, 305888, 318230, 332432, 382360, 415540, 457094, 462880, 509168, 636460, 664864, 764720, 831080, 914188, 1018336, 1142735, 1272920, 1529440, 1662160, 1828376, 2285470, 2514017, 2545840, 3324320, 3656752, 4570940, 5028034, 5091680, 7313504, 9141880, 10056068, 12570085, 18283760, 20112136, 25140170, 36567520, 40224272, 50280340, 80448544, 100560680, 201121360, 402242720]

約数ペア:

[(1, 402242720), (2, 201121360), (4, 100560680), (5, 80448544), (8, 50280340), (10, 40224272), (11, 36567520), (16, 25140170), (20, 20112136), (22, 18283760), (32, 12570085), (40, 10056068), (44, 9141880), (55, 7313504), (79, 5091680), (80, 5028034), (88, 4570940), (110, 3656752), (121, 3324320), (158, 2545840), (160, 2514017), (176, 2285470), (220, 1828376), (242, 1662160), (263, 1529440), (316, 1272920), (352, 1142735), (395, 1018336), (440, 914188), (484, 831080), (526, 764720), (605, 664864), (632, 636460), (790, 509168), (869, 462880), (880, 457094), (968, 415540), (1052, 382360), (1210, 332432), (1264, 318230), (1315, 305888), (1580, 254584), (1738, 231440), (1760, 228547), (1936, 207770), (2104, 191180), (2420, 166216), (2528, 159115), (2630, 152944), (2893, 139040), (3160, 127292), (3476, 115720), (3872, 103885), (4208, 95590), (4345, 92576), (4840, 83108), (5260, 76472), (5786, 69520), (6320, 63646), (6952, 57860), (8416, 47795), (8690, 46288), (9559, 42080), (9680, 41554), (10520, 38236), (11572, 34760), (12640, 31823), (13904, 28930), (14465, 27808), (17380, 23144), (19118, 21040), (19360, 20777)]