20205178

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{479}}^1$

素因数の和:642

約数の個数: 32

約数和(自身を含む): 36495360

約数和(自身を除く): 16290182

約数列:

[1, 2, 7, 14, 23, 46, 131, 161, 262, 322, 479, 917, 958, 1834, 3013, 3353, 6026, 6706, 11017, 21091, 22034, 42182, 62749, 77119, 125498, 154238, 439243, 878486, 1443227, 2886454, 10102589, 20205178]

約数ペア:

[(1, 20205178), (2, 10102589), (7, 2886454), (14, 1443227), (23, 878486), (46, 439243), (131, 154238), (161, 125498), (262, 77119), (322, 62749), (479, 42182), (917, 22034), (958, 21091), (1834, 11017), (3013, 6706), (3353, 6026)]