28159236

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{853}}^1$

素因数の和:1001

約数の個数: 72

約数和(自身を含む): 82065984

約数和(自身を除く): 53906748

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 131, 252, 262, 393, 524, 786, 853, 917, 1179, 1572, 1706, 1834, 2358, 2559, 2751, 3412, 3668, 4716, 5118, 5502, 5971, 7677, 8253, 10236, 11004, 11942, 15354, 16506, 17913, 23884, 30708, 33012, 35826, 53739, 71652, 107478, 111743, 214956, 223486, 335229, 446972, 670458, 782201, 1005687, 1340916, 1564402, 2011374, 2346603, 3128804, 4022748, 4693206, 7039809, 9386412, 14079618, 28159236]

約数ペア:

[(1, 28159236), (2, 14079618), (3, 9386412), (4, 7039809), (6, 4693206), (7, 4022748), (9, 3128804), (12, 2346603), (14, 2011374), (18, 1564402), (21, 1340916), (28, 1005687), (36, 782201), (42, 670458), (63, 446972), (84, 335229), (126, 223486), (131, 214956), (252, 111743), (262, 107478), (393, 71652), (524, 53739), (786, 35826), (853, 33012), (917, 30708), (1179, 23884), (1572, 17913), (1706, 16506), (1834, 15354), (2358, 11942), (2559, 11004), (2751, 10236), (3412, 8253), (3668, 7677), (4716, 5971), (5118, 5502)]