81964428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1597}}^1$

素因数の和:1671

約数の個数: 96

約数和(自身を含む): 240543744

約数和(自身を除く): 158579316

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 47, 52, 78, 84, 91, 94, 141, 156, 182, 188, 273, 282, 329, 364, 546, 564, 611, 658, 987, 1092, 1222, 1316, 1597, 1833, 1974, 2444, 3194, 3666, 3948, 4277, 4791, 6388, 7332, 8554, 9582, 11179, 12831, 17108, 19164, 20761, 22358, 25662, 33537, 41522, 44716, 51324, 62283, 67074, 75059, 83044, 124566, 134148, 145327, 150118, 225177, 249132, 290654, 300236, 435981, 450354, 525413, 581308, 871962, 900708, 975767, 1050826, 1576239, 1743924, 1951534, 2101652, 2927301, 3152478, 3903068, 5854602, 6304956, 6830369, 11709204, 13660738, 20491107, 27321476, 40982214, 81964428]

約数ペア:

[(1, 81964428), (2, 40982214), (3, 27321476), (4, 20491107), (6, 13660738), (7, 11709204), (12, 6830369), (13, 6304956), (14, 5854602), (21, 3903068), (26, 3152478), (28, 2927301), (39, 2101652), (42, 1951534), (47, 1743924), (52, 1576239), (78, 1050826), (84, 975767), (91, 900708), (94, 871962), (141, 581308), (156, 525413), (182, 450354), (188, 435981), (273, 300236), (282, 290654), (329, 249132), (364, 225177), (546, 150118), (564, 145327), (611, 134148), (658, 124566), (987, 83044), (1092, 75059), (1222, 67074), (1316, 62283), (1597, 51324), (1833, 44716), (1974, 41522), (2444, 33537), (3194, 25662), (3666, 22358), (3948, 20761), (4277, 19164), (4791, 17108), (6388, 12831), (7332, 11179), (8554, 9582)]