87999100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{17959}}^1$

素因数の和:17987

約数の個数: 54

約数和(自身を含む): 222147240

約数和(自身を除く): 134148140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 17959, 35918, 71836, 89795, 125713, 179590, 251426, 359180, 448975, 502852, 628565, 879991, 897950, 1257130, 1759982, 1795900, 2514260, 3142825, 3519964, 4399955, 6285650, 8799910, 12571300, 17599820, 21999775, 43999550, 87999100]

約数ペア:

[(1, 87999100), (2, 43999550), (4, 21999775), (5, 17599820), (7, 12571300), (10, 8799910), (14, 6285650), (20, 4399955), (25, 3519964), (28, 3142825), (35, 2514260), (49, 1795900), (50, 1759982), (70, 1257130), (98, 897950), (100, 879991), (140, 628565), (175, 502852), (196, 448975), (245, 359180), (350, 251426), (490, 179590), (700, 125713), (980, 89795), (1225, 71836), (2450, 35918), (4900, 17959)]