20400562

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:335

約数の個数: 48

約数和(自身を含む): 39070080

約数和(自身を除く): 18669518

約数列:

[1, 2, 7, 13, 14, 26, 49, 67, 91, 98, 134, 182, 239, 469, 478, 637, 871, 938, 1274, 1673, 1742, 3107, 3283, 3346, 6097, 6214, 6566, 11711, 12194, 16013, 21749, 23422, 32026, 42679, 43498, 85358, 112091, 152243, 208169, 224182, 304486, 416338, 784637, 1457183, 1569274, 2914366, 10200281, 20400562]

約数ペア:

[(1, 20400562), (2, 10200281), (7, 2914366), (13, 1569274), (14, 1457183), (26, 784637), (49, 416338), (67, 304486), (91, 224182), (98, 208169), (134, 152243), (182, 112091), (239, 85358), (469, 43498), (478, 42679), (637, 32026), (871, 23422), (938, 21749), (1274, 16013), (1673, 12194), (1742, 11711), (3107, 6566), (3283, 6214), (3346, 6097)]