81578562

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1229}}^1$

素因数の和:1307

約数の個数: 64

約数和(自身を含む): 188455680

約数和(自身を除く): 106877118

約数列:

[1, 2, 3, 6, 13, 23, 26, 37, 39, 46, 69, 74, 78, 111, 138, 222, 299, 481, 598, 851, 897, 962, 1229, 1443, 1702, 1794, 2458, 2553, 2886, 3687, 5106, 7374, 11063, 15977, 22126, 28267, 31954, 33189, 45473, 47931, 56534, 66378, 84801, 90946, 95862, 136419, 169602, 272838, 367471, 591149, 734942, 1045879, 1102413, 1182298, 1773447, 2091758, 2204826, 3137637, 3546894, 6275274, 13596427, 27192854, 40789281, 81578562]

約数ペア:

[(1, 81578562), (2, 40789281), (3, 27192854), (6, 13596427), (13, 6275274), (23, 3546894), (26, 3137637), (37, 2204826), (39, 2091758), (46, 1773447), (69, 1182298), (74, 1102413), (78, 1045879), (111, 734942), (138, 591149), (222, 367471), (299, 272838), (481, 169602), (598, 136419), (851, 95862), (897, 90946), (962, 84801), (1229, 66378), (1443, 56534), (1702, 47931), (1794, 45473), (2458, 33189), (2553, 31954), (2886, 28267), (3687, 22126), (5106, 15977), (7374, 11063)]