217332020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{178141}}^1$

素因数の和:178211

約数の個数: 24

約数和(自身を含む): 463881768

約数和(自身を除く): 246549748

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 178141, 356282, 712564, 890705, 1781410, 3562820, 10866601, 21733202, 43466404, 54333005, 108666010, 217332020]

約数ペア:

[(1, 217332020), (2, 108666010), (4, 54333005), (5, 43466404), (10, 21733202), (20, 10866601), (61, 3562820), (122, 1781410), (244, 890705), (305, 712564), (610, 356282), (1220, 178141)]