19492738288

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{216509}}^1$

素因数の和:216865

約数の個数: 40

約数和(自身を含む): 40109776560

約数和(自身を除く): 20617038272

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 331, 662, 1324, 2648, 5296, 5627, 11254, 22508, 45016, 90032, 216509, 433018, 866036, 1732072, 3464144, 3680653, 7361306, 14722612, 29445224, 58890448, 71664479, 143328958, 286657916, 573315832, 1146631664, 1218296143, 2436592286, 4873184572, 9746369144, 19492738288]

約数ペア:

[(1, 19492738288), (2, 9746369144), (4, 4873184572), (8, 2436592286), (16, 1218296143), (17, 1146631664), (34, 573315832), (68, 286657916), (136, 143328958), (272, 71664479), (331, 58890448), (662, 29445224), (1324, 14722612), (2648, 7361306), (5296, 3680653), (5627, 3464144), (11254, 1732072), (22508, 866036), (45016, 433018), (90032, 216509)]