399475664

素因数分解:

$2^4\times 7^1\times {\mathrm{1259}}^1\times {\mathrm{2833}}^1$

素因数の和:4107

約数の個数: 40

約数和(自身を含む): 885568320

約数和(自身を除く): 486092656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1259, 2518, 2833, 5036, 5666, 8813, 10072, 11332, 17626, 19831, 20144, 22664, 35252, 39662, 45328, 70504, 79324, 141008, 158648, 317296, 3566747, 7133494, 14266988, 24967229, 28533976, 49934458, 57067952, 99868916, 199737832, 399475664]

約数ペア:

[(1, 399475664), (2, 199737832), (4, 99868916), (7, 57067952), (8, 49934458), (14, 28533976), (16, 24967229), (28, 14266988), (56, 7133494), (112, 3566747), (1259, 317296), (2518, 158648), (2833, 141008), (5036, 79324), (5666, 70504), (8813, 45328), (10072, 39662), (11332, 35252), (17626, 22664), (19831, 20144)]