18497080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2131}}^1$

素因数の和:2180

約数の個数: 64

約数和(自身を含む): 49121280

約数和(自身を除く): 30624200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2131, 2170, 4262, 4340, 8524, 8680, 10655, 14917, 17048, 21310, 29834, 42620, 59668, 66061, 74585, 85240, 119336, 132122, 149170, 264244, 298340, 330305, 462427, 528488, 596680, 660610, 924854, 1321220, 1849708, 2312135, 2642440, 3699416, 4624270, 9248540, 18497080]

約数ペア:

[(1, 18497080), (2, 9248540), (4, 4624270), (5, 3699416), (7, 2642440), (8, 2312135), (10, 1849708), (14, 1321220), (20, 924854), (28, 660610), (31, 596680), (35, 528488), (40, 462427), (56, 330305), (62, 298340), (70, 264244), (124, 149170), (140, 132122), (155, 119336), (217, 85240), (248, 74585), (280, 66061), (310, 59668), (434, 42620), (620, 29834), (868, 21310), (1085, 17048), (1240, 14917), (1736, 10655), (2131, 8680), (2170, 8524), (4262, 4340)]