20678724

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:761

約数の個数: 72

約数和(自身を含む): 57832320

約数和(自身を除く): 37153596

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 79, 99, 132, 158, 198, 237, 316, 396, 474, 661, 711, 869, 948, 1322, 1422, 1738, 1983, 2607, 2644, 2844, 3476, 3966, 5214, 5949, 7271, 7821, 7932, 10428, 11898, 14542, 15642, 21813, 23796, 29084, 31284, 43626, 52219, 65439, 87252, 104438, 130878, 156657, 208876, 261756, 313314, 469971, 574409, 626628, 939942, 1148818, 1723227, 1879884, 2297636, 3446454, 5169681, 6892908, 10339362, 20678724]

約数ペア:

[(1, 20678724), (2, 10339362), (3, 6892908), (4, 5169681), (6, 3446454), (9, 2297636), (11, 1879884), (12, 1723227), (18, 1148818), (22, 939942), (33, 626628), (36, 574409), (44, 469971), (66, 313314), (79, 261756), (99, 208876), (132, 156657), (158, 130878), (198, 104438), (237, 87252), (316, 65439), (396, 52219), (474, 43626), (661, 31284), (711, 29084), (869, 23796), (948, 21813), (1322, 15642), (1422, 14542), (1738, 11898), (1983, 10428), (2607, 7932), (2644, 7821), (2844, 7271), (3476, 5949), (3966, 5214)]