489990200

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{49999}}^1$

素因数の和:50029

約数の個数: 72

約数和(自身を含む): 1325250000

約数和(自身を除く): 835259800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2450, 4900, 9800, 49999, 99998, 199996, 249995, 349993, 399992, 499990, 699986, 999980, 1249975, 1399972, 1749965, 1999960, 2449951, 2499950, 2799944, 3499930, 4899902, 4999900, 6999860, 8749825, 9799804, 9999800, 12249755, 13999720, 17499650, 19599608, 24499510, 34999300, 48999020, 61248775, 69998600, 97998040, 122497550, 244995100, 489990200]

約数ペア:

[(1, 489990200), (2, 244995100), (4, 122497550), (5, 97998040), (7, 69998600), (8, 61248775), (10, 48999020), (14, 34999300), (20, 24499510), (25, 19599608), (28, 17499650), (35, 13999720), (40, 12249755), (49, 9999800), (50, 9799804), (56, 8749825), (70, 6999860), (98, 4999900), (100, 4899902), (140, 3499930), (175, 2799944), (196, 2499950), (200, 2449951), (245, 1999960), (280, 1749965), (350, 1399972), (392, 1249975), (490, 999980), (700, 699986), (980, 499990), (1225, 399992), (1400, 349993), (1960, 249995), (2450, 199996), (4900, 99998), (9800, 49999)]