420304030

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{4957}}^1$

素因数の和:5164

約数の個数: 32

約数和(自身を含む): 774637920

約数和(自身を除く): 354333890

約数列:

[1, 2, 5, 10, 61, 122, 139, 278, 305, 610, 695, 1390, 4957, 8479, 9914, 16958, 24785, 42395, 49570, 84790, 302377, 604754, 689023, 1378046, 1511885, 3023770, 3445115, 6890230, 42030403, 84060806, 210152015, 420304030]

約数ペア:

[(1, 420304030), (2, 210152015), (5, 84060806), (10, 42030403), (61, 6890230), (122, 3445115), (139, 3023770), (278, 1511885), (305, 1378046), (610, 689023), (695, 604754), (1390, 302377), (4957, 84790), (8479, 49570), (9914, 42395), (16958, 24785)]