900640000

素因数分解:

$2^8\times 5^4\times {\mathrm{13}}^1\times {\mathrm{433}}^1$

素因数の和:482

約数の個数: 180

約数和(自身を含む): 2424876916

約数和(自身を除く): 1524236916

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 128, 130, 160, 200, 208, 250, 256, 260, 320, 325, 400, 416, 433, 500, 520, 625, 640, 650, 800, 832, 866, 1000, 1040, 1250, 1280, 1300, 1600, 1625, 1664, 1732, 2000, 2080, 2165, 2500, 2600, 3200, 3250, 3328, 3464, 4000, 4160, 4330, 5000, 5200, 5629, 6400, 6500, 6928, 8000, 8125, 8320, 8660, 10000, 10400, 10825, 11258, 13000, 13856, 16000, 16250, 16640, 17320, 20000, 20800, 21650, 22516, 26000, 27712, 28145, 32000, 32500, 34640, 40000, 41600, 43300, 45032, 52000, 54125, 55424, 56290, 65000, 69280, 80000, 83200, 86600, 90064, 104000, 108250, 110848, 112580, 130000, 138560, 140725, 160000, 173200, 180128, 208000, 216500, 225160, 260000, 270625, 277120, 281450, 346400, 360256, 416000, 433000, 450320, 520000, 541250, 554240, 562900, 692800, 703625, 720512, 866000, 900640, 1040000, 1082500, 1125800, 1385600, 1407250, 1441024, 1732000, 1801280, 2080000, 2165000, 2251600, 2771200, 2814500, 3464000, 3518125, 3602560, 4330000, 4503200, 5629000, 6928000, 7036250, 7205120, 8660000, 9006400, 11258000, 13856000, 14072500, 17320000, 18012800, 22516000, 28145000, 34640000, 36025600, 45032000, 56290000, 69280000, 90064000, 112580000, 180128000, 225160000, 450320000, 900640000]

約数ペア:

[(1, 900640000), (2, 450320000), (4, 225160000), (5, 180128000), (8, 112580000), (10, 90064000), (13, 69280000), (16, 56290000), (20, 45032000), (25, 36025600), (26, 34640000), (32, 28145000), (40, 22516000), (50, 18012800), (52, 17320000), (64, 14072500), (65, 13856000), (80, 11258000), (100, 9006400), (104, 8660000), (125, 7205120), (128, 7036250), (130, 6928000), (160, 5629000), (200, 4503200), (208, 4330000), (250, 3602560), (256, 3518125), (260, 3464000), (320, 2814500), (325, 2771200), (400, 2251600), (416, 2165000), (433, 2080000), (500, 1801280), (520, 1732000), (625, 1441024), (640, 1407250), (650, 1385600), (800, 1125800), (832, 1082500), (866, 1040000), (1000, 900640), (1040, 866000), (1250, 720512), (1280, 703625), (1300, 692800), (1600, 562900), (1625, 554240), (1664, 541250), (1732, 520000), (2000, 450320), (2080, 433000), (2165, 416000), (2500, 360256), (2600, 346400), (3200, 281450), (3250, 277120), (3328, 270625), (3464, 260000), (4000, 225160), (4160, 216500), (4330, 208000), (5000, 180128), (5200, 173200), (5629, 160000), (6400, 140725), (6500, 138560), (6928, 130000), (8000, 112580), (8125, 110848), (8320, 108250), (8660, 104000), (10000, 90064), (10400, 86600), (10825, 83200), (11258, 80000), (13000, 69280), (13856, 65000), (16000, 56290), (16250, 55424), (16640, 54125), (17320, 52000), (20000, 45032), (20800, 43300), (21650, 41600), (22516, 40000), (26000, 34640), (27712, 32500), (28145, 32000)]