81913936

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{3613}}^1$

素因数の和:3743

約数の個数: 40

約数和(自身を含む): 172532360

約数和(自身を除く): 90618424

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 109, 208, 218, 436, 872, 1417, 1744, 2834, 3613, 5668, 7226, 11336, 14452, 22672, 28904, 46969, 57808, 93938, 187876, 375752, 393817, 751504, 787634, 1575268, 3150536, 5119621, 6301072, 10239242, 20478484, 40956968, 81913936]

約数ペア:

[(1, 81913936), (2, 40956968), (4, 20478484), (8, 10239242), (13, 6301072), (16, 5119621), (26, 3150536), (52, 1575268), (104, 787634), (109, 751504), (208, 393817), (218, 375752), (436, 187876), (872, 93938), (1417, 57808), (1744, 46969), (2834, 28904), (3613, 22672), (5668, 14452), (7226, 11336)]