20255895

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{271}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 38697984

約数和(自身を除く): 18442089

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 151, 165, 271, 453, 495, 755, 813, 1355, 1359, 1661, 2265, 2439, 2981, 4065, 4983, 6795, 8305, 8943, 12195, 14905, 14949, 24915, 26829, 40921, 44715, 74745, 122763, 134145, 204605, 368289, 450131, 613815, 1350393, 1841445, 2250655, 4051179, 6751965, 20255895]

約数ペア:

[(1, 20255895), (3, 6751965), (5, 4051179), (9, 2250655), (11, 1841445), (15, 1350393), (33, 613815), (45, 450131), (55, 368289), (99, 204605), (151, 134145), (165, 122763), (271, 74745), (453, 44715), (495, 40921), (755, 26829), (813, 24915), (1355, 14949), (1359, 14905), (1661, 12195), (2265, 8943), (2439, 8305), (2981, 6795), (4065, 4983)]