20153658100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{223681}}^1$

素因数の和:223765

約数の個数: 72

約数和(自身を含む): 47179902168

約数和(自身を除く): 27026244068

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 53, 68, 85, 100, 106, 170, 212, 265, 340, 425, 530, 850, 901, 1060, 1325, 1700, 1802, 2650, 3604, 4505, 5300, 9010, 18020, 22525, 45050, 90100, 223681, 447362, 894724, 1118405, 2236810, 3802577, 4473620, 5592025, 7605154, 11184050, 11855093, 15210308, 19012885, 22368100, 23710186, 38025770, 47420372, 59275465, 76051540, 95064425, 118550930, 190128850, 201536581, 237101860, 296377325, 380257700, 403073162, 592754650, 806146324, 1007682905, 1185509300, 2015365810, 4030731620, 5038414525, 10076829050, 20153658100]

約数ペア:

[(1, 20153658100), (2, 10076829050), (4, 5038414525), (5, 4030731620), (10, 2015365810), (17, 1185509300), (20, 1007682905), (25, 806146324), (34, 592754650), (50, 403073162), (53, 380257700), (68, 296377325), (85, 237101860), (100, 201536581), (106, 190128850), (170, 118550930), (212, 95064425), (265, 76051540), (340, 59275465), (425, 47420372), (530, 38025770), (850, 23710186), (901, 22368100), (1060, 19012885), (1325, 15210308), (1700, 11855093), (1802, 11184050), (2650, 7605154), (3604, 5592025), (4505, 4473620), (5300, 3802577), (9010, 2236810), (18020, 1118405), (22525, 894724), (45050, 447362), (90100, 223681)]