278442372

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:210

約数の個数: 144

約数和(自身を含む): 750317568

約数和(自身を除く): 471875196

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 43, 52, 62, 78, 86, 93, 103, 124, 129, 156, 169, 172, 186, 206, 258, 309, 338, 372, 403, 412, 507, 516, 559, 618, 676, 806, 1014, 1118, 1209, 1236, 1333, 1339, 1612, 1677, 2028, 2236, 2418, 2666, 2678, 3193, 3354, 3999, 4017, 4429, 4836, 5239, 5332, 5356, 6386, 6708, 7267, 7998, 8034, 8858, 9579, 10478, 12772, 13287, 14534, 15717, 15996, 16068, 17329, 17407, 17716, 19158, 20956, 21801, 26574, 29068, 31434, 34658, 34814, 38316, 41509, 43602, 51987, 52221, 53148, 57577, 62868, 69316, 69628, 83018, 87204, 103974, 104442, 115154, 124527, 137299, 166036, 172731, 207948, 208884, 225277, 230308, 249054, 274598, 345462, 411897, 450554, 498108, 539617, 549196, 675831, 690924, 748501, 823794, 901108, 1079234, 1351662, 1497002, 1618851, 1647588, 1784887, 2158468, 2245503, 2703324, 2994004, 3237702, 3569774, 4491006, 5354661, 6475404, 7139548, 8982012, 10709322, 21418644, 23203531, 46407062, 69610593, 92814124, 139221186, 278442372]

約数ペア:

[(1, 278442372), (2, 139221186), (3, 92814124), (4, 69610593), (6, 46407062), (12, 23203531), (13, 21418644), (26, 10709322), (31, 8982012), (39, 7139548), (43, 6475404), (52, 5354661), (62, 4491006), (78, 3569774), (86, 3237702), (93, 2994004), (103, 2703324), (124, 2245503), (129, 2158468), (156, 1784887), (169, 1647588), (172, 1618851), (186, 1497002), (206, 1351662), (258, 1079234), (309, 901108), (338, 823794), (372, 748501), (403, 690924), (412, 675831), (507, 549196), (516, 539617), (559, 498108), (618, 450554), (676, 411897), (806, 345462), (1014, 274598), (1118, 249054), (1209, 230308), (1236, 225277), (1333, 208884), (1339, 207948), (1612, 172731), (1677, 166036), (2028, 137299), (2236, 124527), (2418, 115154), (2666, 104442), (2678, 103974), (3193, 87204), (3354, 83018), (3999, 69628), (4017, 69316), (4429, 62868), (4836, 57577), (5239, 53148), (5332, 52221), (5356, 51987), (6386, 43602), (6708, 41509), (7267, 38316), (7998, 34814), (8034, 34658), (8858, 31434), (9579, 29068), (10478, 26574), (12772, 21801), (13287, 20956), (14534, 19158), (15717, 17716), (15996, 17407), (16068, 17329)]