8179222900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{6451}}^1$

素因数の和:6905

約数の個数: 72

約数和(自身を含む): 18369102080

約数和(自身を除く): 10189879180

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 409, 620, 775, 818, 1550, 1636, 2045, 3100, 4090, 6451, 8180, 10225, 12679, 12902, 20450, 25358, 25804, 32255, 40900, 50716, 63395, 64510, 126790, 129020, 161275, 199981, 253580, 316975, 322550, 399962, 633950, 645100, 799924, 999905, 1267900, 1999810, 2638459, 3999620, 4999525, 5276918, 9999050, 10553836, 13192295, 19998100, 26384590, 52769180, 65961475, 81792229, 131922950, 163584458, 263845900, 327168916, 408961145, 817922290, 1635844580, 2044805725, 4089611450, 8179222900]

約数ペア:

[(1, 8179222900), (2, 4089611450), (4, 2044805725), (5, 1635844580), (10, 817922290), (20, 408961145), (25, 327168916), (31, 263845900), (50, 163584458), (62, 131922950), (100, 81792229), (124, 65961475), (155, 52769180), (310, 26384590), (409, 19998100), (620, 13192295), (775, 10553836), (818, 9999050), (1550, 5276918), (1636, 4999525), (2045, 3999620), (3100, 2638459), (4090, 1999810), (6451, 1267900), (8180, 999905), (10225, 799924), (12679, 645100), (12902, 633950), (20450, 399962), (25358, 322550), (25804, 316975), (32255, 253580), (40900, 199981), (50716, 161275), (63395, 129020), (64510, 126790)]