20885710

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:468

約数の個数: 32

約数和(自身を含む): 38701152

約数和(自身を除く): 17815442

約数列:

[1, 2, 5, 10, 53, 106, 157, 251, 265, 314, 502, 530, 785, 1255, 1570, 2510, 8321, 13303, 16642, 26606, 39407, 41605, 66515, 78814, 83210, 133030, 197035, 394070, 2088571, 4177142, 10442855, 20885710]

約数ペア:

[(1, 20885710), (2, 10442855), (5, 4177142), (10, 2088571), (53, 394070), (106, 197035), (157, 133030), (251, 83210), (265, 78814), (314, 66515), (502, 41605), (530, 39407), (785, 26606), (1255, 16642), (1570, 13303), (2510, 8321)]