20872728

素因数分解:

$2^3\times 3^7\times {\mathrm{1193}}^1$

素因数の和:1220

約数の個数: 64

約数和(自身を含む): 58744800

約数和(自身を除く): 37872072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 729, 972, 1193, 1458, 1944, 2187, 2386, 2916, 3579, 4374, 4772, 5832, 7158, 8748, 9544, 10737, 14316, 17496, 21474, 28632, 32211, 42948, 64422, 85896, 96633, 128844, 193266, 257688, 289899, 386532, 579798, 773064, 869697, 1159596, 1739394, 2319192, 2609091, 3478788, 5218182, 6957576, 10436364, 20872728]

約数ペア:

[(1, 20872728), (2, 10436364), (3, 6957576), (4, 5218182), (6, 3478788), (8, 2609091), (9, 2319192), (12, 1739394), (18, 1159596), (24, 869697), (27, 773064), (36, 579798), (54, 386532), (72, 289899), (81, 257688), (108, 193266), (162, 128844), (216, 96633), (243, 85896), (324, 64422), (486, 42948), (648, 32211), (729, 28632), (972, 21474), (1193, 17496), (1458, 14316), (1944, 10737), (2187, 9544), (2386, 8748), (2916, 7158), (3579, 5832), (4374, 4772)]