256286238

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{1277}}^1$

素因数の和:1409

約数の個数: 64

約数和(自身を含む): 577124352

約数和(自身を除く): 320838114

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 83, 93, 166, 186, 249, 403, 498, 806, 1079, 1209, 1277, 2158, 2418, 2554, 2573, 3237, 3831, 5146, 6474, 7662, 7719, 15438, 16601, 33202, 33449, 39587, 49803, 66898, 79174, 99606, 100347, 105991, 118761, 200694, 211982, 237522, 317973, 514631, 635946, 1029262, 1377883, 1543893, 2755766, 3087786, 3285721, 4133649, 6571442, 8267298, 9857163, 19714326, 42714373, 85428746, 128143119, 256286238]

約数ペア:

[(1, 256286238), (2, 128143119), (3, 85428746), (6, 42714373), (13, 19714326), (26, 9857163), (31, 8267298), (39, 6571442), (62, 4133649), (78, 3285721), (83, 3087786), (93, 2755766), (166, 1543893), (186, 1377883), (249, 1029262), (403, 635946), (498, 514631), (806, 317973), (1079, 237522), (1209, 211982), (1277, 200694), (2158, 118761), (2418, 105991), (2554, 100347), (2573, 99606), (3237, 79174), (3831, 66898), (5146, 49803), (6474, 39587), (7662, 33449), (7719, 33202), (15438, 16601)]