20749525680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1987}}^1\times {\mathrm{3347}}^1$

素因数の和:5363

約数の個数: 160

約数和(自身を含む): 69327062784

約数和(自身を除く): 48577537104

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 1987, 3120, 3347, 3974, 5961, 6694, 7948, 9935, 10041, 11922, 13388, 15896, 16735, 19870, 20082, 23844, 25831, 26776, 29805, 31792, 33470, 39740, 40164, 43511, 47688, 50205, 51662, 53552, 59610, 66940, 77493, 79480, 80328, 87022, 95376, 100410, 103324, 119220, 129155, 130533, 133880, 154986, 158960, 160656, 174044, 200820, 206648, 217555, 238440, 258310, 261066, 267760, 309972, 348088, 387465, 401640, 413296, 435110, 476880, 516620, 522132, 619944, 652665, 696176, 774930, 803280, 870220, 1033240, 1044264, 1239888, 1305330, 1549860, 1740440, 2066480, 2088528, 2610660, 3099720, 3480880, 5221320, 6199440, 6650489, 10442640, 13300978, 19951467, 26601956, 33252445, 39902934, 53203912, 66504890, 79805868, 86456357, 99757335, 106407824, 133009780, 159611736, 172912714, 199514670, 259369071, 266019560, 319223472, 345825428, 399029340, 432281785, 518738142, 532039120, 691650856, 798058680, 864563570, 1037476284, 1296845355, 1383301712, 1596117360, 1729127140, 2074952568, 2593690710, 3458254280, 4149905136, 5187381420, 6916508560, 10374762840, 20749525680]

約数ペア:

[(1, 20749525680), (2, 10374762840), (3, 6916508560), (4, 5187381420), (5, 4149905136), (6, 3458254280), (8, 2593690710), (10, 2074952568), (12, 1729127140), (13, 1596117360), (15, 1383301712), (16, 1296845355), (20, 1037476284), (24, 864563570), (26, 798058680), (30, 691650856), (39, 532039120), (40, 518738142), (48, 432281785), (52, 399029340), (60, 345825428), (65, 319223472), (78, 266019560), (80, 259369071), (104, 199514670), (120, 172912714), (130, 159611736), (156, 133009780), (195, 106407824), (208, 99757335), (240, 86456357), (260, 79805868), (312, 66504890), (390, 53203912), (520, 39902934), (624, 33252445), (780, 26601956), (1040, 19951467), (1560, 13300978), (1987, 10442640), (3120, 6650489), (3347, 6199440), (3974, 5221320), (5961, 3480880), (6694, 3099720), (7948, 2610660), (9935, 2088528), (10041, 2066480), (11922, 1740440), (13388, 1549860), (15896, 1305330), (16735, 1239888), (19870, 1044264), (20082, 1033240), (23844, 870220), (25831, 803280), (26776, 774930), (29805, 696176), (31792, 652665), (33470, 619944), (39740, 522132), (40164, 516620), (43511, 476880), (47688, 435110), (50205, 413296), (51662, 401640), (53552, 387465), (59610, 348088), (66940, 309972), (77493, 267760), (79480, 261066), (80328, 258310), (87022, 238440), (95376, 217555), (100410, 206648), (103324, 200820), (119220, 174044), (129155, 160656), (130533, 158960), (133880, 154986)]