19993399285888

素因数分解:

$2^7\times 7^1\times {\mathrm{20627}}^1\times {\mathrm{1081789}}^1$

素因数の和:1102437

約数の個数: 64

約数和(自身を含む): 45522934804800

約数和(自身を除く): 25529535518912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 448, 896, 20627, 41254, 82508, 144389, 165016, 288778, 330032, 577556, 660064, 1081789, 1155112, 1320128, 2163578, 2310224, 2640256, 4327156, 4620448, 7572523, 8654312, 9240896, 15145046, 17308624, 18481792, 30290092, 34617248, 60580184, 69234496, 121160368, 138468992, 242320736, 484641472, 969282944, 22314061703, 44628123406, 89256246812, 156198431921, 178512493624, 312396863842, 357024987248, 624793727684, 714049974496, 1249587455368, 1428099948992, 2499174910736, 2856199897984, 4998349821472, 9996699642944, 19993399285888]

約数ペア:

[(1, 19993399285888), (2, 9996699642944), (4, 4998349821472), (7, 2856199897984), (8, 2499174910736), (14, 1428099948992), (16, 1249587455368), (28, 714049974496), (32, 624793727684), (56, 357024987248), (64, 312396863842), (112, 178512493624), (128, 156198431921), (224, 89256246812), (448, 44628123406), (896, 22314061703), (20627, 969282944), (41254, 484641472), (82508, 242320736), (144389, 138468992), (165016, 121160368), (288778, 69234496), (330032, 60580184), (577556, 34617248), (660064, 30290092), (1081789, 18481792), (1155112, 17308624), (1320128, 15145046), (2163578, 9240896), (2310224, 8654312), (2640256, 7572523), (4327156, 4620448)]