21372400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1$

素因数の和:491

約数の個数: 120

約数和(自身を含む): 62272800

約数和(自身を除く): 40900400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 25, 28, 34, 35, 40, 50, 56, 68, 70, 80, 85, 100, 112, 119, 136, 140, 170, 175, 200, 238, 272, 280, 340, 350, 400, 425, 449, 476, 560, 595, 680, 700, 850, 898, 952, 1190, 1360, 1400, 1700, 1796, 1904, 2245, 2380, 2800, 2975, 3143, 3400, 3592, 4490, 4760, 5950, 6286, 6800, 7184, 7633, 8980, 9520, 11225, 11900, 12572, 15266, 15715, 17960, 22450, 23800, 25144, 30532, 31430, 35920, 38165, 44900, 47600, 50288, 53431, 61064, 62860, 76330, 78575, 89800, 106862, 122128, 125720, 152660, 157150, 179600, 190825, 213724, 251440, 267155, 305320, 314300, 381650, 427448, 534310, 610640, 628600, 763300, 854896, 1068620, 1257200, 1335775, 1526600, 2137240, 2671550, 3053200, 4274480, 5343100, 10686200, 21372400]

約数ペア:

[(1, 21372400), (2, 10686200), (4, 5343100), (5, 4274480), (7, 3053200), (8, 2671550), (10, 2137240), (14, 1526600), (16, 1335775), (17, 1257200), (20, 1068620), (25, 854896), (28, 763300), (34, 628600), (35, 610640), (40, 534310), (50, 427448), (56, 381650), (68, 314300), (70, 305320), (80, 267155), (85, 251440), (100, 213724), (112, 190825), (119, 179600), (136, 157150), (140, 152660), (170, 125720), (175, 122128), (200, 106862), (238, 89800), (272, 78575), (280, 76330), (340, 62860), (350, 61064), (400, 53431), (425, 50288), (449, 47600), (476, 44900), (560, 38165), (595, 35920), (680, 31430), (700, 30532), (850, 25144), (898, 23800), (952, 22450), (1190, 17960), (1360, 15715), (1400, 15266), (1700, 12572), (1796, 11900), (1904, 11225), (2245, 9520), (2380, 8980), (2800, 7633), (2975, 7184), (3143, 6800), (3400, 6286), (3592, 5950), (4490, 4760)]