78157320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{607}}^1$

素因数の和:687

約数の個数: 128

約数和(自身を含む): 249523200

約数和(自身を除く): 171365880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 37, 40, 58, 60, 74, 87, 111, 116, 120, 145, 148, 174, 185, 222, 232, 290, 296, 348, 370, 435, 444, 555, 580, 607, 696, 740, 870, 888, 1073, 1110, 1160, 1214, 1480, 1740, 1821, 2146, 2220, 2428, 3035, 3219, 3480, 3642, 4292, 4440, 4856, 5365, 6070, 6438, 7284, 8584, 9105, 10730, 12140, 12876, 14568, 16095, 17603, 18210, 21460, 22459, 24280, 25752, 32190, 35206, 36420, 42920, 44918, 52809, 64380, 67377, 70412, 72840, 88015, 89836, 105618, 112295, 128760, 134754, 140824, 176030, 179672, 211236, 224590, 264045, 269508, 336885, 352060, 422472, 449180, 528090, 539016, 651311, 673770, 704120, 898360, 1056180, 1302622, 1347540, 1953933, 2112360, 2605244, 2695080, 3256555, 3907866, 5210488, 6513110, 7815732, 9769665, 13026220, 15631464, 19539330, 26052440, 39078660, 78157320]

約数ペア:

[(1, 78157320), (2, 39078660), (3, 26052440), (4, 19539330), (5, 15631464), (6, 13026220), (8, 9769665), (10, 7815732), (12, 6513110), (15, 5210488), (20, 3907866), (24, 3256555), (29, 2695080), (30, 2605244), (37, 2112360), (40, 1953933), (58, 1347540), (60, 1302622), (74, 1056180), (87, 898360), (111, 704120), (116, 673770), (120, 651311), (145, 539016), (148, 528090), (174, 449180), (185, 422472), (222, 352060), (232, 336885), (290, 269508), (296, 264045), (348, 224590), (370, 211236), (435, 179672), (444, 176030), (555, 140824), (580, 134754), (607, 128760), (696, 112295), (740, 105618), (870, 89836), (888, 88015), (1073, 72840), (1110, 70412), (1160, 67377), (1214, 64380), (1480, 52809), (1740, 44918), (1821, 42920), (2146, 36420), (2220, 35206), (2428, 32190), (3035, 25752), (3219, 24280), (3480, 22459), (3642, 21460), (4292, 18210), (4440, 17603), (4856, 16095), (5365, 14568), (6070, 12876), (6438, 12140), (7284, 10730), (8584, 9105)]