316750000

素因数分解:

$2^4\times 5^6\times 7^1\times {\mathrm{181}}^1$

素因数の和:226

約数の個数: 140

約数和(自身を含む): 881551216

約数和(自身を除く): 564801216

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, 181, 200, 250, 280, 350, 362, 400, 500, 560, 625, 700, 724, 875, 905, 1000, 1250, 1267, 1400, 1448, 1750, 1810, 2000, 2500, 2534, 2800, 2896, 3125, 3500, 3620, 4375, 4525, 5000, 5068, 6250, 6335, 7000, 7240, 8750, 9050, 10000, 10136, 12500, 12670, 14000, 14480, 15625, 17500, 18100, 20272, 21875, 22625, 25000, 25340, 31250, 31675, 35000, 36200, 43750, 45250, 50000, 50680, 62500, 63350, 70000, 72400, 87500, 90500, 101360, 109375, 113125, 125000, 126700, 158375, 175000, 181000, 218750, 226250, 250000, 253400, 316750, 350000, 362000, 437500, 452500, 506800, 565625, 633500, 791875, 875000, 905000, 1131250, 1267000, 1583750, 1750000, 1810000, 2262500, 2534000, 2828125, 3167500, 3959375, 4525000, 5656250, 6335000, 7918750, 9050000, 11312500, 12670000, 15837500, 19796875, 22625000, 31675000, 39593750, 45250000, 63350000, 79187500, 158375000, 316750000]

約数ペア:

[(1, 316750000), (2, 158375000), (4, 79187500), (5, 63350000), (7, 45250000), (8, 39593750), (10, 31675000), (14, 22625000), (16, 19796875), (20, 15837500), (25, 12670000), (28, 11312500), (35, 9050000), (40, 7918750), (50, 6335000), (56, 5656250), (70, 4525000), (80, 3959375), (100, 3167500), (112, 2828125), (125, 2534000), (140, 2262500), (175, 1810000), (181, 1750000), (200, 1583750), (250, 1267000), (280, 1131250), (350, 905000), (362, 875000), (400, 791875), (500, 633500), (560, 565625), (625, 506800), (700, 452500), (724, 437500), (875, 362000), (905, 350000), (1000, 316750), (1250, 253400), (1267, 250000), (1400, 226250), (1448, 218750), (1750, 181000), (1810, 175000), (2000, 158375), (2500, 126700), (2534, 125000), (2800, 113125), (2896, 109375), (3125, 101360), (3500, 90500), (3620, 87500), (4375, 72400), (4525, 70000), (5000, 63350), (5068, 62500), (6250, 50680), (6335, 50000), (7000, 45250), (7240, 43750), (8750, 36200), (9050, 35000), (10000, 31675), (10136, 31250), (12500, 25340), (12670, 25000), (14000, 22625), (14480, 21875), (15625, 20272), (17500, 18100)]