20512459850

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{502141}}^1$

素因数の和:502215

約数の個数: 48

約数和(自身を含む): 41095301280

約数和(自身を除く): 20582841430

約数列:

[1, 2, 5, 10, 19, 25, 38, 43, 50, 86, 95, 190, 215, 430, 475, 817, 950, 1075, 1634, 2150, 4085, 8170, 20425, 40850, 502141, 1004282, 2510705, 5021410, 9540679, 12553525, 19081358, 21592063, 25107050, 43184126, 47703395, 95406790, 107960315, 215920630, 238516975, 410249197, 477033950, 539801575, 820498394, 1079603150, 2051245985, 4102491970, 10256229925, 20512459850]

約数ペア:

[(1, 20512459850), (2, 10256229925), (5, 4102491970), (10, 2051245985), (19, 1079603150), (25, 820498394), (38, 539801575), (43, 477033950), (50, 410249197), (86, 238516975), (95, 215920630), (190, 107960315), (215, 95406790), (430, 47703395), (475, 43184126), (817, 25107050), (950, 21592063), (1075, 19081358), (1634, 12553525), (2150, 9540679), (4085, 5021410), (8170, 2510705), (20425, 1004282), (40850, 502141)]