20956967320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{130687}}^1$

素因数の和:130928

約数の個数: 64

約数和(自身を含む): 49870540800

約数和(自身を除く): 28913573480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 211, 380, 422, 760, 844, 1055, 1688, 2110, 4009, 4220, 8018, 8440, 16036, 20045, 32072, 40090, 80180, 130687, 160360, 261374, 522748, 653435, 1045496, 1306870, 2483053, 2613740, 4966106, 5227480, 9932212, 12415265, 19864424, 24830530, 27574957, 49661060, 55149914, 99322120, 110299828, 137874785, 220599656, 275749570, 523924183, 551499140, 1047848366, 1102998280, 2095696732, 2619620915, 4191393464, 5239241830, 10478483660, 20956967320]

約数ペア:

[(1, 20956967320), (2, 10478483660), (4, 5239241830), (5, 4191393464), (8, 2619620915), (10, 2095696732), (19, 1102998280), (20, 1047848366), (38, 551499140), (40, 523924183), (76, 275749570), (95, 220599656), (152, 137874785), (190, 110299828), (211, 99322120), (380, 55149914), (422, 49661060), (760, 27574957), (844, 24830530), (1055, 19864424), (1688, 12415265), (2110, 9932212), (4009, 5227480), (4220, 4966106), (8018, 2613740), (8440, 2483053), (16036, 1306870), (20045, 1045496), (32072, 653435), (40090, 522748), (80180, 261374), (130687, 160360)]