221840710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{243781}}^1$

素因数の和:243808

約数の個数: 32

約数和(自身を含む): 491464512

約数和(自身を除く): 269623802

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 243781, 487562, 1218905, 1706467, 2437810, 3169153, 3412934, 6338306, 8532335, 15845765, 17064670, 22184071, 31691530, 44368142, 110920355, 221840710]

約数ペア:

[(1, 221840710), (2, 110920355), (5, 44368142), (7, 31691530), (10, 22184071), (13, 17064670), (14, 15845765), (26, 8532335), (35, 6338306), (65, 3412934), (70, 3169153), (91, 2437810), (130, 1706467), (182, 1218905), (455, 487562), (910, 243781)]