42721770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15649}}^1$

素因数の和:15679

約数の個数: 64

約数和(自身を含む): 126201600

約数和(自身を除く): 83479830

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 15649, 31298, 46947, 78245, 93894, 109543, 156490, 203437, 219086, 234735, 328629, 406874, 469470, 547715, 610311, 657258, 1017185, 1095430, 1220622, 1424059, 1643145, 2034370, 2848118, 3051555, 3286290, 4272177, 6103110, 7120295, 8544354, 14240590, 21360885, 42721770]

約数ペア:

[(1, 42721770), (2, 21360885), (3, 14240590), (5, 8544354), (6, 7120295), (7, 6103110), (10, 4272177), (13, 3286290), (14, 3051555), (15, 2848118), (21, 2034370), (26, 1643145), (30, 1424059), (35, 1220622), (39, 1095430), (42, 1017185), (65, 657258), (70, 610311), (78, 547715), (91, 469470), (105, 406874), (130, 328629), (182, 234735), (195, 219086), (210, 203437), (273, 156490), (390, 109543), (455, 93894), (546, 78245), (910, 46947), (1365, 31298), (2730, 15649)]