26207480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{499}}^1$

素因数の和:624

約数の個数: 64

約数和(自身を含む): 64260000

約数和(自身を除く): 38052520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 101, 104, 130, 202, 260, 404, 499, 505, 520, 808, 998, 1010, 1313, 1996, 2020, 2495, 2626, 3992, 4040, 4990, 5252, 6487, 6565, 9980, 10504, 12974, 13130, 19960, 25948, 26260, 32435, 50399, 51896, 52520, 64870, 100798, 129740, 201596, 251995, 259480, 403192, 503990, 655187, 1007980, 1310374, 2015960, 2620748, 3275935, 5241496, 6551870, 13103740, 26207480]

約数ペア:

[(1, 26207480), (2, 13103740), (4, 6551870), (5, 5241496), (8, 3275935), (10, 2620748), (13, 2015960), (20, 1310374), (26, 1007980), (40, 655187), (52, 503990), (65, 403192), (101, 259480), (104, 251995), (130, 201596), (202, 129740), (260, 100798), (404, 64870), (499, 52520), (505, 51896), (520, 50399), (808, 32435), (998, 26260), (1010, 25948), (1313, 19960), (1996, 13130), (2020, 12974), (2495, 10504), (2626, 9980), (3992, 6565), (4040, 6487), (4990, 5252)]