81939156

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1$

素因数の和:641

約数の個数: 96

約数和(自身を含む): 220485888

約数和(自身を除く): 138546732

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 41, 46, 52, 69, 78, 82, 92, 123, 138, 156, 164, 246, 276, 299, 492, 533, 557, 598, 897, 943, 1066, 1114, 1196, 1599, 1671, 1794, 1886, 2132, 2228, 2829, 3198, 3342, 3588, 3772, 5658, 6396, 6684, 7241, 11316, 12259, 12811, 14482, 21723, 22837, 24518, 25622, 28964, 36777, 38433, 43446, 45674, 49036, 51244, 68511, 73554, 76866, 86892, 91348, 137022, 147108, 153732, 166543, 274044, 296881, 333086, 499629, 525251, 593762, 666172, 890643, 999258, 1050502, 1187524, 1575753, 1781286, 1998516, 2101004, 3151506, 3562572, 6303012, 6828263, 13656526, 20484789, 27313052, 40969578, 81939156]

約数ペア:

[(1, 81939156), (2, 40969578), (3, 27313052), (4, 20484789), (6, 13656526), (12, 6828263), (13, 6303012), (23, 3562572), (26, 3151506), (39, 2101004), (41, 1998516), (46, 1781286), (52, 1575753), (69, 1187524), (78, 1050502), (82, 999258), (92, 890643), (123, 666172), (138, 593762), (156, 525251), (164, 499629), (246, 333086), (276, 296881), (299, 274044), (492, 166543), (533, 153732), (557, 147108), (598, 137022), (897, 91348), (943, 86892), (1066, 76866), (1114, 73554), (1196, 68511), (1599, 51244), (1671, 49036), (1794, 45674), (1886, 43446), (2132, 38433), (2228, 36777), (2829, 28964), (3198, 25622), (3342, 24518), (3588, 22837), (3772, 21723), (5658, 14482), (6396, 12811), (6684, 12259), (7241, 11316)]