809460400

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{41299}}^1$

素因数の和:41331

約数の個数: 90

約数和(自身を含む): 2262290100

約数和(自身を除く): 1452829700

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1960, 2450, 2800, 3920, 4900, 9800, 19600, 41299, 82598, 165196, 206495, 289093, 330392, 412990, 578186, 660784, 825980, 1032475, 1156372, 1445465, 1651960, 2023651, 2064950, 2312744, 2890930, 3303920, 4047302, 4129900, 4625488, 5781860, 7227325, 8094604, 8259800, 10118255, 11563720, 14454650, 16189208, 16519600, 20236510, 23127440, 28909300, 32378416, 40473020, 50591275, 57818600, 80946040, 101182550, 115637200, 161892080, 202365100, 404730200, 809460400]

約数ペア:

[(1, 809460400), (2, 404730200), (4, 202365100), (5, 161892080), (7, 115637200), (8, 101182550), (10, 80946040), (14, 57818600), (16, 50591275), (20, 40473020), (25, 32378416), (28, 28909300), (35, 23127440), (40, 20236510), (49, 16519600), (50, 16189208), (56, 14454650), (70, 11563720), (80, 10118255), (98, 8259800), (100, 8094604), (112, 7227325), (140, 5781860), (175, 4625488), (196, 4129900), (200, 4047302), (245, 3303920), (280, 2890930), (350, 2312744), (392, 2064950), (400, 2023651), (490, 1651960), (560, 1445465), (700, 1156372), (784, 1032475), (980, 825980), (1225, 660784), (1400, 578186), (1960, 412990), (2450, 330392), (2800, 289093), (3920, 206495), (4900, 165196), (9800, 82598), (19600, 41299)]