128764600

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^2\times {\mathrm{383}}^1$

素因数の和:481

約数の個数: 72

約数和(自身を含む): 307658880

約数和(自身を除く): 178894280

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 383, 410, 766, 820, 1025, 1532, 1640, 1681, 1915, 2050, 3064, 3362, 3830, 4100, 6724, 7660, 8200, 8405, 9575, 13448, 15320, 15703, 16810, 19150, 31406, 33620, 38300, 42025, 62812, 67240, 76600, 78515, 84050, 125624, 157030, 168100, 314060, 336200, 392575, 628120, 643823, 785150, 1287646, 1570300, 2575292, 3140600, 3219115, 5150584, 6438230, 12876460, 16095575, 25752920, 32191150, 64382300, 128764600]

約数ペア:

[(1, 128764600), (2, 64382300), (4, 32191150), (5, 25752920), (8, 16095575), (10, 12876460), (20, 6438230), (25, 5150584), (40, 3219115), (41, 3140600), (50, 2575292), (82, 1570300), (100, 1287646), (164, 785150), (200, 643823), (205, 628120), (328, 392575), (383, 336200), (410, 314060), (766, 168100), (820, 157030), (1025, 125624), (1532, 84050), (1640, 78515), (1681, 76600), (1915, 67240), (2050, 62812), (3064, 42025), (3362, 38300), (3830, 33620), (4100, 31406), (6724, 19150), (7660, 16810), (8200, 15703), (8405, 15320), (9575, 13448)]