19700072

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 44044800

約数和(自身を除く): 24344728

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 73, 79, 122, 146, 158, 244, 292, 316, 427, 488, 511, 553, 584, 632, 854, 1022, 1106, 1708, 2044, 2212, 3416, 4088, 4424, 4453, 4819, 5767, 8906, 9638, 11534, 17812, 19276, 23068, 31171, 33733, 35624, 38552, 40369, 46136, 62342, 67466, 80738, 124684, 134932, 161476, 249368, 269864, 322952, 351787, 703574, 1407148, 2462509, 2814296, 4925018, 9850036, 19700072]

約数ペア:

[(1, 19700072), (2, 9850036), (4, 4925018), (7, 2814296), (8, 2462509), (14, 1407148), (28, 703574), (56, 351787), (61, 322952), (73, 269864), (79, 249368), (122, 161476), (146, 134932), (158, 124684), (244, 80738), (292, 67466), (316, 62342), (427, 46136), (488, 40369), (511, 38552), (553, 35624), (584, 33733), (632, 31171), (854, 23068), (1022, 19276), (1106, 17812), (1708, 11534), (2044, 9638), (2212, 8906), (3416, 5767), (4088, 4819), (4424, 4453)]