78721552

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{4159}}^1$

素因数の和:4200

約数の個数: 60

約数和(自身を含む): 188797440

約数和(自身を除く): 110075888

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 169, 182, 208, 338, 364, 676, 728, 1183, 1352, 1456, 2366, 2704, 4159, 4732, 8318, 9464, 16636, 18928, 29113, 33272, 54067, 58226, 66544, 108134, 116452, 216268, 232904, 378469, 432536, 465808, 702871, 756938, 865072, 1405742, 1513876, 2811484, 3027752, 4920097, 5622968, 6055504, 9840194, 11245936, 19680388, 39360776, 78721552]

約数ペア:

[(1, 78721552), (2, 39360776), (4, 19680388), (7, 11245936), (8, 9840194), (13, 6055504), (14, 5622968), (16, 4920097), (26, 3027752), (28, 2811484), (52, 1513876), (56, 1405742), (91, 865072), (104, 756938), (112, 702871), (169, 465808), (182, 432536), (208, 378469), (338, 232904), (364, 216268), (676, 116452), (728, 108134), (1183, 66544), (1352, 58226), (1456, 54067), (2366, 33272), (2704, 29113), (4159, 18928), (4732, 16636), (8318, 9464)]