1640030000

素因数分解:

$2^4\times 5^4\times 7^2\times {\mathrm{3347}}^1$

素因数の和:3389

約数の個数: 150

約数和(自身を含む): 4620330396

約数和(自身を除く): 2980300396

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, 125, 140, 175, 196, 200, 245, 250, 280, 350, 392, 400, 490, 500, 560, 625, 700, 784, 875, 980, 1000, 1225, 1250, 1400, 1750, 1960, 2000, 2450, 2500, 2800, 3347, 3500, 3920, 4375, 4900, 5000, 6125, 6694, 7000, 8750, 9800, 10000, 12250, 13388, 14000, 16735, 17500, 19600, 23429, 24500, 26776, 30625, 33470, 35000, 46858, 49000, 53552, 61250, 66940, 70000, 83675, 93716, 98000, 117145, 122500, 133880, 164003, 167350, 187432, 234290, 245000, 267760, 328006, 334700, 374864, 418375, 468580, 490000, 585725, 656012, 669400, 820015, 836750, 937160, 1171450, 1312024, 1338800, 1640030, 1673500, 1874320, 2091875, 2342900, 2624048, 2928625, 3280060, 3347000, 4100075, 4183750, 4685800, 5857250, 6560120, 6694000, 8200150, 8367500, 9371600, 11714500, 13120240, 14643125, 16400300, 16735000, 20500375, 23429000, 29286250, 32800600, 33470000, 41000750, 46858000, 58572500, 65601200, 82001500, 102501875, 117145000, 164003000, 205003750, 234290000, 328006000, 410007500, 820015000, 1640030000]

約数ペア:

[(1, 1640030000), (2, 820015000), (4, 410007500), (5, 328006000), (7, 234290000), (8, 205003750), (10, 164003000), (14, 117145000), (16, 102501875), (20, 82001500), (25, 65601200), (28, 58572500), (35, 46858000), (40, 41000750), (49, 33470000), (50, 32800600), (56, 29286250), (70, 23429000), (80, 20500375), (98, 16735000), (100, 16400300), (112, 14643125), (125, 13120240), (140, 11714500), (175, 9371600), (196, 8367500), (200, 8200150), (245, 6694000), (250, 6560120), (280, 5857250), (350, 4685800), (392, 4183750), (400, 4100075), (490, 3347000), (500, 3280060), (560, 2928625), (625, 2624048), (700, 2342900), (784, 2091875), (875, 1874320), (980, 1673500), (1000, 1640030), (1225, 1338800), (1250, 1312024), (1400, 1171450), (1750, 937160), (1960, 836750), (2000, 820015), (2450, 669400), (2500, 656012), (2800, 585725), (3347, 490000), (3500, 468580), (3920, 418375), (4375, 374864), (4900, 334700), (5000, 328006), (6125, 267760), (6694, 245000), (7000, 234290), (8750, 187432), (9800, 167350), (10000, 164003), (12250, 133880), (13388, 122500), (14000, 117145), (16735, 98000), (17500, 93716), (19600, 83675), (23429, 70000), (24500, 66940), (26776, 61250), (30625, 53552), (33470, 49000), (35000, 46858)]