81618656

素因数分解:

$2^5\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1831}}^1$

素因数の和:2047

約数の個数: 48

約数和(自身を含む): 184665600

約数和(自身を除く): 103046944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 199, 224, 398, 796, 1393, 1592, 1831, 2786, 3184, 3662, 5572, 6368, 7324, 11144, 12817, 14648, 22288, 25634, 29296, 44576, 51268, 58592, 102536, 205072, 364369, 410144, 728738, 1457476, 2550583, 2914952, 5101166, 5829904, 10202332, 11659808, 20404664, 40809328, 81618656]

約数ペア:

[(1, 81618656), (2, 40809328), (4, 20404664), (7, 11659808), (8, 10202332), (14, 5829904), (16, 5101166), (28, 2914952), (32, 2550583), (56, 1457476), (112, 728738), (199, 410144), (224, 364369), (398, 205072), (796, 102536), (1393, 58592), (1592, 51268), (1831, 44576), (2786, 29296), (3184, 25634), (3662, 22288), (5572, 14648), (6368, 12817), (7324, 11144)]