16648840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{317}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 40869360

約数和(自身を除く): 24220520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 101, 104, 130, 202, 260, 317, 404, 505, 520, 634, 808, 1010, 1268, 1313, 1585, 2020, 2536, 2626, 3170, 4040, 4121, 5252, 6340, 6565, 8242, 10504, 12680, 13130, 16484, 20605, 26260, 32017, 32968, 41210, 52520, 64034, 82420, 128068, 160085, 164840, 256136, 320170, 416221, 640340, 832442, 1280680, 1664884, 2081105, 3329768, 4162210, 8324420, 16648840]

約数ペア:

[(1, 16648840), (2, 8324420), (4, 4162210), (5, 3329768), (8, 2081105), (10, 1664884), (13, 1280680), (20, 832442), (26, 640340), (40, 416221), (52, 320170), (65, 256136), (101, 164840), (104, 160085), (130, 128068), (202, 82420), (260, 64034), (317, 52520), (404, 41210), (505, 32968), (520, 32017), (634, 26260), (808, 20605), (1010, 16484), (1268, 13130), (1313, 12680), (1585, 10504), (2020, 8242), (2536, 6565), (2626, 6340), (3170, 5252), (4040, 4121)]