2177451902020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1811}}^1\times {\mathrm{985531}}^1$

素因数の和:987412

約数の個数: 48

約数和(自身を含む): 4650181494336

約数和(自身を除く): 2472729592316

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1811, 3622, 7244, 9055, 18110, 36220, 110471, 220942, 441884, 552355, 985531, 1104710, 1971062, 2209420, 3942124, 4927655, 9855310, 19710620, 60117391, 120234782, 240469564, 300586955, 601173910, 1202347820, 1784796641, 3569593282, 7139186564, 8923983205, 17847966410, 35695932820, 108872595101, 217745190202, 435490380404, 544362975505, 1088725951010, 2177451902020]

約数ペア:

[(1, 2177451902020), (2, 1088725951010), (4, 544362975505), (5, 435490380404), (10, 217745190202), (20, 108872595101), (61, 35695932820), (122, 17847966410), (244, 8923983205), (305, 7139186564), (610, 3569593282), (1220, 1784796641), (1811, 1202347820), (3622, 601173910), (7244, 300586955), (9055, 240469564), (18110, 120234782), (36220, 60117391), (110471, 19710620), (220942, 9855310), (441884, 4927655), (552355, 3942124), (985531, 2209420), (1104710, 1971062)]