19219728

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:520

約数の個数: 80

約数和(自身を含む): 54907200

約数和(自身を除く): 35687472

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 89, 132, 176, 178, 264, 267, 356, 409, 528, 534, 712, 818, 979, 1068, 1227, 1424, 1636, 1958, 2136, 2454, 2937, 3272, 3916, 4272, 4499, 4908, 5874, 6544, 7832, 8998, 9816, 11748, 13497, 15664, 17996, 19632, 23496, 26994, 35992, 36401, 46992, 53988, 71984, 72802, 107976, 109203, 145604, 215952, 218406, 291208, 400411, 436812, 582416, 800822, 873624, 1201233, 1601644, 1747248, 2402466, 3203288, 4804932, 6406576, 9609864, 19219728]

約数ペア:

[(1, 19219728), (2, 9609864), (3, 6406576), (4, 4804932), (6, 3203288), (8, 2402466), (11, 1747248), (12, 1601644), (16, 1201233), (22, 873624), (24, 800822), (33, 582416), (44, 436812), (48, 400411), (66, 291208), (88, 218406), (89, 215952), (132, 145604), (176, 109203), (178, 107976), (264, 72802), (267, 71984), (356, 53988), (409, 46992), (528, 36401), (534, 35992), (712, 26994), (818, 23496), (979, 19632), (1068, 17996), (1227, 15664), (1424, 13497), (1636, 11748), (1958, 9816), (2136, 8998), (2454, 7832), (2937, 6544), (3272, 5874), (3916, 4908), (4272, 4499)]