81578838

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{881}}^1$

素因数の和:981

約数の個数: 64

約数和(自身を含む): 188987904

約数和(自身を除く): 107409066

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 61, 66, 69, 122, 138, 183, 253, 366, 506, 671, 759, 881, 1342, 1403, 1518, 1762, 2013, 2643, 2806, 4026, 4209, 5286, 8418, 9691, 15433, 19382, 20263, 29073, 30866, 40526, 46299, 53741, 58146, 60789, 92598, 107482, 121578, 161223, 222893, 322446, 445786, 591151, 668679, 1182302, 1236043, 1337358, 1773453, 2472086, 3546906, 3708129, 7416258, 13596473, 27192946, 40789419, 81578838]

約数ペア:

[(1, 81578838), (2, 40789419), (3, 27192946), (6, 13596473), (11, 7416258), (22, 3708129), (23, 3546906), (33, 2472086), (46, 1773453), (61, 1337358), (66, 1236043), (69, 1182302), (122, 668679), (138, 591151), (183, 445786), (253, 322446), (366, 222893), (506, 161223), (671, 121578), (759, 107482), (881, 92598), (1342, 60789), (1403, 58146), (1518, 53741), (1762, 46299), (2013, 40526), (2643, 30866), (2806, 29073), (4026, 20263), (4209, 19382), (5286, 15433), (8418, 9691)]