661614400

素因数分解:

$2^6\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13339}}^1$

素因数の和:13392

約数の個数: 84

約数和(自身を含む): 1680626560

約数和(自身を除く): 1019012160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 155, 160, 200, 248, 310, 320, 400, 496, 620, 775, 800, 992, 1240, 1550, 1600, 1984, 2480, 3100, 4960, 6200, 9920, 12400, 13339, 24800, 26678, 49600, 53356, 66695, 106712, 133390, 213424, 266780, 333475, 413509, 426848, 533560, 666950, 827018, 853696, 1067120, 1333900, 1654036, 2067545, 2134240, 2667800, 3308072, 4135090, 4268480, 5335600, 6616144, 8270180, 10337725, 10671200, 13232288, 16540360, 20675450, 21342400, 26464576, 33080720, 41350900, 66161440, 82701800, 132322880, 165403600, 330807200, 661614400]

約数ペア:

[(1, 661614400), (2, 330807200), (4, 165403600), (5, 132322880), (8, 82701800), (10, 66161440), (16, 41350900), (20, 33080720), (25, 26464576), (31, 21342400), (32, 20675450), (40, 16540360), (50, 13232288), (62, 10671200), (64, 10337725), (80, 8270180), (100, 6616144), (124, 5335600), (155, 4268480), (160, 4135090), (200, 3308072), (248, 2667800), (310, 2134240), (320, 2067545), (400, 1654036), (496, 1333900), (620, 1067120), (775, 853696), (800, 827018), (992, 666950), (1240, 533560), (1550, 426848), (1600, 413509), (1984, 333475), (2480, 266780), (3100, 213424), (4960, 133390), (6200, 106712), (9920, 66695), (12400, 53356), (13339, 49600), (24800, 26678)]