20435766

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 46296768

約数和(自身を除く): 25861002

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 73, 74, 78, 97, 111, 146, 194, 219, 222, 291, 438, 481, 582, 949, 962, 1261, 1443, 1898, 2522, 2701, 2847, 2886, 3589, 3783, 5402, 5694, 7081, 7178, 7566, 8103, 10767, 14162, 16206, 21243, 21534, 35113, 42486, 46657, 70226, 92053, 93314, 105339, 139971, 184106, 210678, 261997, 276159, 279942, 523994, 552318, 785991, 1571982, 3405961, 6811922, 10217883, 20435766]

約数ペア:

[(1, 20435766), (2, 10217883), (3, 6811922), (6, 3405961), (13, 1571982), (26, 785991), (37, 552318), (39, 523994), (73, 279942), (74, 276159), (78, 261997), (97, 210678), (111, 184106), (146, 139971), (194, 105339), (219, 93314), (222, 92053), (291, 70226), (438, 46657), (481, 42486), (582, 35113), (949, 21534), (962, 21243), (1261, 16206), (1443, 14162), (1898, 10767), (2522, 8103), (2701, 7566), (2847, 7178), (2886, 7081), (3589, 5694), (3783, 5402)]