40391428

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{659}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 88704000

約数和(自身を除く): 48312572

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 199, 308, 398, 659, 796, 1318, 1393, 2189, 2636, 2786, 4378, 4613, 5572, 7249, 8756, 9226, 14498, 15323, 18452, 28996, 30646, 50743, 61292, 101486, 131141, 202972, 262282, 524564, 917987, 1442551, 1835974, 2885102, 3671948, 5770204, 10097857, 20195714, 40391428]

約数ペア:

[(1, 40391428), (2, 20195714), (4, 10097857), (7, 5770204), (11, 3671948), (14, 2885102), (22, 1835974), (28, 1442551), (44, 917987), (77, 524564), (154, 262282), (199, 202972), (308, 131141), (398, 101486), (659, 61292), (796, 50743), (1318, 30646), (1393, 28996), (2189, 18452), (2636, 15323), (2786, 14498), (4378, 9226), (4613, 8756), (5572, 7249)]