638524942

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 1123642368

約数和(自身を除く): 485117426

約数列:

[1, 2, 11, 22, 23, 46, 61, 122, 137, 151, 253, 274, 302, 506, 671, 1342, 1403, 1507, 1661, 2806, 3014, 3151, 3322, 3473, 6302, 6946, 8357, 9211, 15433, 16714, 18422, 20687, 30866, 34661, 38203, 41374, 69322, 76406, 91927, 101321, 183854, 192211, 202642, 211853, 227557, 384422, 423706, 455114, 475801, 951602, 1261907, 2114321, 2330383, 2523814, 4228642, 4660766, 5233811, 10467622, 13880977, 27761954, 29023861, 58047722, 319262471, 638524942]

約数ペア:

[(1, 638524942), (2, 319262471), (11, 58047722), (22, 29023861), (23, 27761954), (46, 13880977), (61, 10467622), (122, 5233811), (137, 4660766), (151, 4228642), (253, 2523814), (274, 2330383), (302, 2114321), (506, 1261907), (671, 951602), (1342, 475801), (1403, 455114), (1507, 423706), (1661, 384422), (2806, 227557), (3014, 211853), (3151, 202642), (3322, 192211), (3473, 183854), (6302, 101321), (6946, 91927), (8357, 76406), (9211, 69322), (15433, 41374), (16714, 38203), (18422, 34661), (20687, 30866)]