31915890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2749}}^1$

素因数の和:2808

約数の個数: 64

約数和(自身を含む): 87120000

約数和(自身を除く): 55204110

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 43, 45, 54, 86, 90, 129, 135, 215, 258, 270, 387, 430, 645, 774, 1161, 1290, 1935, 2322, 2749, 3870, 5498, 5805, 8247, 11610, 13745, 16494, 24741, 27490, 41235, 49482, 74223, 82470, 118207, 123705, 148446, 236414, 247410, 354621, 371115, 591035, 709242, 742230, 1063863, 1182070, 1773105, 2127726, 3191589, 3546210, 5319315, 6383178, 10638630, 15957945, 31915890]

約数ペア:

[(1, 31915890), (2, 15957945), (3, 10638630), (5, 6383178), (6, 5319315), (9, 3546210), (10, 3191589), (15, 2127726), (18, 1773105), (27, 1182070), (30, 1063863), (43, 742230), (45, 709242), (54, 591035), (86, 371115), (90, 354621), (129, 247410), (135, 236414), (215, 148446), (258, 123705), (270, 118207), (387, 82470), (430, 74223), (645, 49482), (774, 41235), (1161, 27490), (1290, 24741), (1935, 16494), (2322, 13745), (2749, 11610), (3870, 8247), (5498, 5805)]