199982500

素因数分解:

$2^2\times 5^4\times {\mathrm{167}}^1\times {\mathrm{479}}^1$

素因数の和:670

約数の個数: 60

約数和(自身を含む): 440858880

約数和(自身を除く): 240876380

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 167, 250, 334, 479, 500, 625, 668, 835, 958, 1250, 1670, 1916, 2395, 2500, 3340, 4175, 4790, 8350, 9580, 11975, 16700, 20875, 23950, 41750, 47900, 59875, 79993, 83500, 104375, 119750, 159986, 208750, 239500, 299375, 319972, 399965, 417500, 598750, 799930, 1197500, 1599860, 1999825, 3999650, 7999300, 9999125, 19998250, 39996500, 49995625, 99991250, 199982500]

約数ペア:

[(1, 199982500), (2, 99991250), (4, 49995625), (5, 39996500), (10, 19998250), (20, 9999125), (25, 7999300), (50, 3999650), (100, 1999825), (125, 1599860), (167, 1197500), (250, 799930), (334, 598750), (479, 417500), (500, 399965), (625, 319972), (668, 299375), (835, 239500), (958, 208750), (1250, 159986), (1670, 119750), (1916, 104375), (2395, 83500), (2500, 79993), (3340, 59875), (4175, 47900), (4790, 41750), (8350, 23950), (9580, 20875), (11975, 16700)]