20565500912

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{645577}}^1$

素因数の和:645777

約数の個数: 40

約数和(自身を含む): 43708212912

約数和(自身を除く): 23142712000

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 181, 362, 724, 1448, 1991, 2896, 3982, 7964, 15928, 31856, 645577, 1291154, 2582308, 5164616, 7101347, 10329232, 14202694, 28405388, 56810776, 113621552, 116849437, 233698874, 467397748, 934795496, 1285343807, 1869590992, 2570687614, 5141375228, 10282750456, 20565500912]

約数ペア:

[(1, 20565500912), (2, 10282750456), (4, 5141375228), (8, 2570687614), (11, 1869590992), (16, 1285343807), (22, 934795496), (44, 467397748), (88, 233698874), (176, 116849437), (181, 113621552), (362, 56810776), (724, 28405388), (1448, 14202694), (1991, 10329232), (2896, 7101347), (3982, 5164616), (7964, 2582308), (15928, 1291154), (31856, 645577)]