643994065

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2213}}^1$

素因数の和:2290

約数の個数: 48

約数和(自身を含む): 939922704

約数和(自身を除く): 295928639

約数列:

[1, 5, 11, 13, 37, 55, 65, 121, 143, 185, 407, 481, 605, 715, 1573, 2035, 2213, 2405, 4477, 5291, 7865, 11065, 22385, 24343, 26455, 28769, 58201, 81881, 121715, 143845, 267773, 291005, 316459, 409405, 900691, 1064453, 1338865, 1582295, 3481049, 4503455, 5322265, 9907601, 11708983, 17405245, 49538005, 58544915, 128798813, 643994065]

約数ペア:

[(1, 643994065), (5, 128798813), (11, 58544915), (13, 49538005), (37, 17405245), (55, 11708983), (65, 9907601), (121, 5322265), (143, 4503455), (185, 3481049), (407, 1582295), (481, 1338865), (605, 1064453), (715, 900691), (1573, 409405), (2035, 316459), (2213, 291005), (2405, 267773), (4477, 143845), (5291, 121715), (7865, 81881), (11065, 58201), (22385, 28769), (24343, 26455)]