20197156

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{281}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 43206912

約数和(自身を除く): 23009756

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 151, 238, 281, 302, 476, 562, 604, 1057, 1124, 1967, 2114, 2567, 3934, 4228, 4777, 5134, 7868, 9554, 10268, 17969, 19108, 33439, 35938, 42431, 66878, 71876, 84862, 133756, 169724, 297017, 594034, 721327, 1188068, 1442654, 2885308, 5049289, 10098578, 20197156]

約数ペア:

[(1, 20197156), (2, 10098578), (4, 5049289), (7, 2885308), (14, 1442654), (17, 1188068), (28, 721327), (34, 594034), (68, 297017), (119, 169724), (151, 133756), (238, 84862), (281, 71876), (302, 66878), (476, 42431), (562, 35938), (604, 33439), (1057, 19108), (1124, 17969), (1967, 10268), (2114, 9554), (2567, 7868), (3934, 5134), (4228, 4777)]