20370285

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:156

約数の個数: 80

約数和(自身を含む): 40615344

約数和(自身を除く): 20245059

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 53, 65, 73, 81, 117, 135, 159, 195, 219, 265, 351, 365, 405, 477, 585, 657, 689, 795, 949, 1053, 1095, 1431, 1755, 1971, 2067, 2385, 2847, 3285, 3445, 3869, 4293, 4745, 5265, 5913, 6201, 7155, 8541, 9855, 10335, 11607, 14235, 18603, 19345, 21465, 25623, 29565, 31005, 34821, 42705, 50297, 55809, 58035, 76869, 93015, 104463, 128115, 150891, 174105, 251485, 279045, 313389, 384345, 452673, 522315, 754455, 1358019, 1566945, 2263365, 4074057, 6790095, 20370285]

約数ペア:

[(1, 20370285), (3, 6790095), (5, 4074057), (9, 2263365), (13, 1566945), (15, 1358019), (27, 754455), (39, 522315), (45, 452673), (53, 384345), (65, 313389), (73, 279045), (81, 251485), (117, 174105), (135, 150891), (159, 128115), (195, 104463), (219, 93015), (265, 76869), (351, 58035), (365, 55809), (405, 50297), (477, 42705), (585, 34821), (657, 31005), (689, 29565), (795, 25623), (949, 21465), (1053, 19345), (1095, 18603), (1431, 14235), (1755, 11607), (1971, 10335), (2067, 9855), (2385, 8541), (2847, 7155), (3285, 6201), (3445, 5913), (3869, 5265), (4293, 4745)]