18816752

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{643}}^1$

素因数の和:741

約数の個数: 40

約数和(自身を含む): 38330880

約数和(自身を除く): 19514128

約数列:

[1, 2, 4, 8, 16, 31, 59, 62, 118, 124, 236, 248, 472, 496, 643, 944, 1286, 1829, 2572, 3658, 5144, 7316, 10288, 14632, 19933, 29264, 37937, 39866, 75874, 79732, 151748, 159464, 303496, 318928, 606992, 1176047, 2352094, 4704188, 9408376, 18816752]

約数ペア:

[(1, 18816752), (2, 9408376), (4, 4704188), (8, 2352094), (16, 1176047), (31, 606992), (59, 318928), (62, 303496), (118, 159464), (124, 151748), (236, 79732), (248, 75874), (472, 39866), (496, 37937), (643, 29264), (944, 19933), (1286, 14632), (1829, 10288), (2572, 7316), (3658, 5144)]