1640226005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{2557}}^1$

素因数の和:2789

約数の個数: 32

約数和(自身を含む): 2188010880

約数和(自身を除く): 547784875

約数列:

[1, 5, 11, 55, 107, 109, 535, 545, 1177, 1199, 2557, 5885, 5995, 11663, 12785, 28127, 58315, 128293, 140635, 273599, 278713, 641465, 1367995, 1393565, 3009589, 3065843, 15047945, 15329215, 29822291, 149111455, 328045201, 1640226005]

約数ペア:

[(1, 1640226005), (5, 328045201), (11, 149111455), (55, 29822291), (107, 15329215), (109, 15047945), (535, 3065843), (545, 3009589), (1177, 1393565), (1199, 1367995), (2557, 641465), (5885, 278713), (5995, 273599), (11663, 140635), (12785, 128293), (28127, 58315)]