81736408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{557}}^1$

素因数の和:676

約数の個数: 64

約数和(自身を含む): 177176160

約数和(自身を除く): 95439752

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 83, 104, 136, 166, 221, 332, 442, 557, 664, 884, 1079, 1114, 1411, 1768, 2158, 2228, 2822, 4316, 4456, 5644, 7241, 8632, 9469, 11288, 14482, 18343, 18938, 28964, 36686, 37876, 46231, 57928, 73372, 75752, 92462, 123097, 146744, 184924, 246194, 369848, 492388, 601003, 785927, 984776, 1202006, 1571854, 2404012, 3143708, 4808024, 6287416, 10217051, 20434102, 40868204, 81736408]

約数ペア:

[(1, 81736408), (2, 40868204), (4, 20434102), (8, 10217051), (13, 6287416), (17, 4808024), (26, 3143708), (34, 2404012), (52, 1571854), (68, 1202006), (83, 984776), (104, 785927), (136, 601003), (166, 492388), (221, 369848), (332, 246194), (442, 184924), (557, 146744), (664, 123097), (884, 92462), (1079, 75752), (1114, 73372), (1411, 57928), (1768, 46231), (2158, 37876), (2228, 36686), (2822, 28964), (4316, 18938), (4456, 18343), (5644, 14482), (7241, 11288), (8632, 9469)]