31461660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{631}}^1$

素因数の和:923

約数の個数: 72

約数和(自身を含む): 95930016

約数和(自身を除く): 64468356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 277, 554, 631, 831, 1108, 1262, 1385, 1662, 1893, 2493, 2524, 2770, 3155, 3324, 3786, 4155, 4986, 5540, 5679, 6310, 7572, 8310, 9465, 9972, 11358, 12465, 12620, 16620, 18930, 22716, 24930, 28395, 37860, 49860, 56790, 113580, 174787, 349574, 524361, 699148, 873935, 1048722, 1573083, 1747870, 2097444, 2621805, 3146166, 3495740, 5243610, 6292332, 7865415, 10487220, 15730830, 31461660]

約数ペア:

[(1, 31461660), (2, 15730830), (3, 10487220), (4, 7865415), (5, 6292332), (6, 5243610), (9, 3495740), (10, 3146166), (12, 2621805), (15, 2097444), (18, 1747870), (20, 1573083), (30, 1048722), (36, 873935), (45, 699148), (60, 524361), (90, 349574), (180, 174787), (277, 113580), (554, 56790), (631, 49860), (831, 37860), (1108, 28395), (1262, 24930), (1385, 22716), (1662, 18930), (1893, 16620), (2493, 12620), (2524, 12465), (2770, 11358), (3155, 9972), (3324, 9465), (3786, 8310), (4155, 7572), (4986, 6310), (5540, 5679)]