28377804

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1999}}^1$

素因数の和:2039

約数の個数: 72

約数和(自身を含む): 81984000

約数和(自身を除く): 53606196

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 169, 182, 273, 338, 364, 507, 546, 676, 1014, 1092, 1183, 1999, 2028, 2366, 3549, 3998, 4732, 5997, 7098, 7996, 11994, 13993, 14196, 23988, 25987, 27986, 41979, 51974, 55972, 77961, 83958, 103948, 155922, 167916, 181909, 311844, 337831, 363818, 545727, 675662, 727636, 1013493, 1091454, 1351324, 2026986, 2182908, 2364817, 4053972, 4729634, 7094451, 9459268, 14188902, 28377804]

約数ペア:

[(1, 28377804), (2, 14188902), (3, 9459268), (4, 7094451), (6, 4729634), (7, 4053972), (12, 2364817), (13, 2182908), (14, 2026986), (21, 1351324), (26, 1091454), (28, 1013493), (39, 727636), (42, 675662), (52, 545727), (78, 363818), (84, 337831), (91, 311844), (156, 181909), (169, 167916), (182, 155922), (273, 103948), (338, 83958), (364, 77961), (507, 55972), (546, 51974), (676, 41979), (1014, 27986), (1092, 25987), (1183, 23988), (1999, 14196), (2028, 13993), (2366, 11994), (3549, 7996), (3998, 7098), (4732, 5997)]