1271120000

素因数分解:

$2^7\times 5^4\times {\mathrm{15889}}^1$

素因数の和:15923

約数の個数: 80

約数和(自身を含む): 3164572950

約数和(自身を除く): 1893452950

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 625, 640, 800, 1000, 1250, 1600, 2000, 2500, 3200, 4000, 5000, 8000, 10000, 15889, 16000, 20000, 31778, 40000, 63556, 79445, 80000, 127112, 158890, 254224, 317780, 397225, 508448, 635560, 794450, 1016896, 1271120, 1588900, 1986125, 2033792, 2542240, 3177800, 3972250, 5084480, 6355600, 7944500, 9930625, 10168960, 12711200, 15889000, 19861250, 25422400, 31778000, 39722500, 50844800, 63556000, 79445000, 127112000, 158890000, 254224000, 317780000, 635560000, 1271120000]

約数ペア:

[(1, 1271120000), (2, 635560000), (4, 317780000), (5, 254224000), (8, 158890000), (10, 127112000), (16, 79445000), (20, 63556000), (25, 50844800), (32, 39722500), (40, 31778000), (50, 25422400), (64, 19861250), (80, 15889000), (100, 12711200), (125, 10168960), (128, 9930625), (160, 7944500), (200, 6355600), (250, 5084480), (320, 3972250), (400, 3177800), (500, 2542240), (625, 2033792), (640, 1986125), (800, 1588900), (1000, 1271120), (1250, 1016896), (1600, 794450), (2000, 635560), (2500, 508448), (3200, 397225), (4000, 317780), (5000, 254224), (8000, 158890), (10000, 127112), (15889, 80000), (16000, 79445), (20000, 63556), (31778, 40000)]