128538800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1301}}^1$

素因数の和:1351

約数の個数: 120

約数和(自身を含む): 350342160

約数和(自身を除く): 221803360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 38, 40, 50, 52, 65, 76, 80, 95, 100, 104, 130, 152, 190, 200, 208, 247, 260, 304, 325, 380, 400, 475, 494, 520, 650, 760, 950, 988, 1040, 1235, 1300, 1301, 1520, 1900, 1976, 2470, 2600, 2602, 3800, 3952, 4940, 5200, 5204, 6175, 6505, 7600, 9880, 10408, 12350, 13010, 16913, 19760, 20816, 24700, 24719, 26020, 32525, 33826, 49400, 49438, 52040, 65050, 67652, 84565, 98800, 98876, 104080, 123595, 130100, 135304, 169130, 197752, 247190, 260200, 270608, 321347, 338260, 395504, 422825, 494380, 520400, 617975, 642694, 676520, 845650, 988760, 1235950, 1285388, 1353040, 1606735, 1691300, 1977520, 2471900, 2570776, 3213470, 3382600, 4943800, 5141552, 6426940, 6765200, 8033675, 9887600, 12853880, 16067350, 25707760, 32134700, 64269400, 128538800]

約数ペア:

[(1, 128538800), (2, 64269400), (4, 32134700), (5, 25707760), (8, 16067350), (10, 12853880), (13, 9887600), (16, 8033675), (19, 6765200), (20, 6426940), (25, 5141552), (26, 4943800), (38, 3382600), (40, 3213470), (50, 2570776), (52, 2471900), (65, 1977520), (76, 1691300), (80, 1606735), (95, 1353040), (100, 1285388), (104, 1235950), (130, 988760), (152, 845650), (190, 676520), (200, 642694), (208, 617975), (247, 520400), (260, 494380), (304, 422825), (325, 395504), (380, 338260), (400, 321347), (475, 270608), (494, 260200), (520, 247190), (650, 197752), (760, 169130), (950, 135304), (988, 130100), (1040, 123595), (1235, 104080), (1300, 98876), (1301, 98800), (1520, 84565), (1900, 67652), (1976, 65050), (2470, 52040), (2600, 49438), (2602, 49400), (3800, 33826), (3952, 32525), (4940, 26020), (5200, 24719), (5204, 24700), (6175, 20816), (6505, 19760), (7600, 16913), (9880, 13010), (10408, 12350)]