720352892

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1\times {\mathrm{1153}}^1$

素因数の和:1638

約数の個数: 48

約数和(自身を含む): 1472651712

約数和(自身を除く): 752298820

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 421, 742, 842, 1153, 1484, 1684, 2306, 2947, 4612, 5894, 8071, 11788, 16142, 22313, 32284, 44626, 61109, 89252, 122218, 156191, 244436, 312382, 427763, 485413, 624764, 855526, 970826, 1711052, 1941652, 3397891, 6795782, 13591564, 25726889, 51453778, 102907556, 180088223, 360176446, 720352892]

約数ペア:

[(1, 720352892), (2, 360176446), (4, 180088223), (7, 102907556), (14, 51453778), (28, 25726889), (53, 13591564), (106, 6795782), (212, 3397891), (371, 1941652), (421, 1711052), (742, 970826), (842, 855526), (1153, 624764), (1484, 485413), (1684, 427763), (2306, 312382), (2947, 244436), (4612, 156191), (5894, 122218), (8071, 89252), (11788, 61109), (16142, 44626), (22313, 32284)]