28390986

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:118

約数の個数: 120

約数和(自身を含む): 74134764

約数和(自身を除く): 45743778

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 61, 78, 81, 102, 117, 122, 153, 162, 169, 183, 221, 234, 306, 338, 351, 366, 442, 459, 507, 549, 663, 702, 793, 918, 1014, 1037, 1053, 1098, 1326, 1377, 1521, 1586, 1647, 1989, 2074, 2106, 2379, 2754, 2873, 3042, 3111, 3294, 3978, 4563, 4758, 4941, 5746, 5967, 6222, 7137, 8619, 9126, 9333, 9882, 10309, 11934, 13481, 13689, 14274, 17238, 17901, 18666, 20618, 21411, 25857, 26962, 27378, 27999, 30927, 35802, 40443, 42822, 51714, 55998, 61854, 64233, 77571, 80886, 83997, 92781, 121329, 128466, 155142, 167994, 175253, 185562, 232713, 242658, 278343, 350506, 363987, 465426, 525759, 556686, 727974, 835029, 1051518, 1091961, 1577277, 1670058, 2183922, 3154554, 4731831, 9463662, 14195493, 28390986]

約数ペア:

[(1, 28390986), (2, 14195493), (3, 9463662), (6, 4731831), (9, 3154554), (13, 2183922), (17, 1670058), (18, 1577277), (26, 1091961), (27, 1051518), (34, 835029), (39, 727974), (51, 556686), (54, 525759), (61, 465426), (78, 363987), (81, 350506), (102, 278343), (117, 242658), (122, 232713), (153, 185562), (162, 175253), (169, 167994), (183, 155142), (221, 128466), (234, 121329), (306, 92781), (338, 83997), (351, 80886), (366, 77571), (442, 64233), (459, 61854), (507, 55998), (549, 51714), (663, 42822), (702, 40443), (793, 35802), (918, 30927), (1014, 27999), (1037, 27378), (1053, 26962), (1098, 25857), (1326, 21411), (1377, 20618), (1521, 18666), (1586, 17901), (1647, 17238), (1989, 14274), (2074, 13689), (2106, 13481), (2379, 11934), (2754, 10309), (2873, 9882), (3042, 9333), (3111, 9126), (3294, 8619), (3978, 7137), (4563, 6222), (4758, 5967), (4941, 5746)]