31780000

素因数分解:

$2^5\times 5^4\times 7^1\times {\mathrm{227}}^1$

素因数の和:264

約数の個数: 120

約数和(自身を含む): 89746272

約数和(自身を除く): 57966272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 160, 175, 200, 224, 227, 250, 280, 350, 400, 454, 500, 560, 625, 700, 800, 875, 908, 1000, 1120, 1135, 1250, 1400, 1589, 1750, 1816, 2000, 2270, 2500, 2800, 3178, 3500, 3632, 4000, 4375, 4540, 5000, 5600, 5675, 6356, 7000, 7264, 7945, 8750, 9080, 10000, 11350, 12712, 14000, 15890, 17500, 18160, 20000, 22700, 25424, 28000, 28375, 31780, 35000, 36320, 39725, 45400, 50848, 56750, 63560, 70000, 79450, 90800, 113500, 127120, 140000, 141875, 158900, 181600, 198625, 227000, 254240, 283750, 317800, 397250, 454000, 567500, 635600, 794500, 908000, 993125, 1135000, 1271200, 1589000, 1986250, 2270000, 3178000, 3972500, 4540000, 6356000, 7945000, 15890000, 31780000]

約数ペア:

[(1, 31780000), (2, 15890000), (4, 7945000), (5, 6356000), (7, 4540000), (8, 3972500), (10, 3178000), (14, 2270000), (16, 1986250), (20, 1589000), (25, 1271200), (28, 1135000), (32, 993125), (35, 908000), (40, 794500), (50, 635600), (56, 567500), (70, 454000), (80, 397250), (100, 317800), (112, 283750), (125, 254240), (140, 227000), (160, 198625), (175, 181600), (200, 158900), (224, 141875), (227, 140000), (250, 127120), (280, 113500), (350, 90800), (400, 79450), (454, 70000), (500, 63560), (560, 56750), (625, 50848), (700, 45400), (800, 39725), (875, 36320), (908, 35000), (1000, 31780), (1120, 28375), (1135, 28000), (1250, 25424), (1400, 22700), (1589, 20000), (1750, 18160), (1816, 17500), (2000, 15890), (2270, 14000), (2500, 12712), (2800, 11350), (3178, 10000), (3500, 9080), (3632, 8750), (4000, 7945), (4375, 7264), (4540, 7000), (5000, 6356), (5600, 5675)]