20000148

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{521}}^1$

素因数の和:992

約数の個数: 48

約数和(自身を含む): 53553024

約数和(自身を除く): 33552876

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 457, 521, 914, 1042, 1371, 1563, 1828, 2084, 2742, 3126, 3199, 3647, 5484, 6252, 6398, 7294, 9597, 10941, 12796, 14588, 19194, 21882, 38388, 43764, 238097, 476194, 714291, 952388, 1428582, 1666679, 2857164, 3333358, 5000037, 6666716, 10000074, 20000148]

約数ペア:

[(1, 20000148), (2, 10000074), (3, 6666716), (4, 5000037), (6, 3333358), (7, 2857164), (12, 1666679), (14, 1428582), (21, 952388), (28, 714291), (42, 476194), (84, 238097), (457, 43764), (521, 38388), (914, 21882), (1042, 19194), (1371, 14588), (1563, 12796), (1828, 10941), (2084, 9597), (2742, 7294), (3126, 6398), (3199, 6252), (3647, 5484)]