31871345

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{383}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 44789760

約数和(自身を除く): 12918415

約数列:

[1, 5, 11, 17, 55, 85, 89, 187, 383, 445, 935, 979, 1513, 1915, 4213, 4895, 6511, 7565, 16643, 21065, 32555, 34087, 71621, 83215, 170435, 358105, 374957, 579479, 1874785, 2897395, 6374269, 31871345]

約数ペア:

[(1, 31871345), (5, 6374269), (11, 2897395), (17, 1874785), (55, 579479), (85, 374957), (89, 358105), (187, 170435), (383, 83215), (445, 71621), (935, 34087), (979, 32555), (1513, 21065), (1915, 16643), (4213, 7565), (4895, 6511)]