381850000

素因数分解:

$2^4\times 5^5\times 7^1\times {\mathrm{1091}}^1$

素因数の和:1131

約数の個数: 120

約数和(自身を含む): 1057807296

約数和(自身を除く): 675957296

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 280, 350, 400, 500, 560, 625, 700, 875, 1000, 1091, 1250, 1400, 1750, 2000, 2182, 2500, 2800, 3125, 3500, 4364, 4375, 5000, 5455, 6250, 7000, 7637, 8728, 8750, 10000, 10910, 12500, 14000, 15274, 17456, 17500, 21820, 21875, 25000, 27275, 30548, 35000, 38185, 43640, 43750, 50000, 54550, 61096, 70000, 76370, 87280, 87500, 109100, 122192, 136375, 152740, 175000, 190925, 218200, 272750, 305480, 350000, 381850, 436400, 545500, 610960, 681875, 763700, 954625, 1091000, 1363750, 1527400, 1909250, 2182000, 2727500, 3054800, 3409375, 3818500, 4773125, 5455000, 6818750, 7637000, 9546250, 10910000, 13637500, 15274000, 19092500, 23865625, 27275000, 38185000, 47731250, 54550000, 76370000, 95462500, 190925000, 381850000]

約数ペア:

[(1, 381850000), (2, 190925000), (4, 95462500), (5, 76370000), (7, 54550000), (8, 47731250), (10, 38185000), (14, 27275000), (16, 23865625), (20, 19092500), (25, 15274000), (28, 13637500), (35, 10910000), (40, 9546250), (50, 7637000), (56, 6818750), (70, 5455000), (80, 4773125), (100, 3818500), (112, 3409375), (125, 3054800), (140, 2727500), (175, 2182000), (200, 1909250), (250, 1527400), (280, 1363750), (350, 1091000), (400, 954625), (500, 763700), (560, 681875), (625, 610960), (700, 545500), (875, 436400), (1000, 381850), (1091, 350000), (1250, 305480), (1400, 272750), (1750, 218200), (2000, 190925), (2182, 175000), (2500, 152740), (2800, 136375), (3125, 122192), (3500, 109100), (4364, 87500), (4375, 87280), (5000, 76370), (5455, 70000), (6250, 61096), (7000, 54550), (7637, 50000), (8728, 43750), (8750, 43640), (10000, 38185), (10910, 35000), (12500, 30548), (14000, 27275), (15274, 25000), (17456, 21875), (17500, 21820)]