287207984

素因数分解:

$2^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{28813}}^1$

素因数の和:28917

約数の個数: 40

約数和(自身を含む): 643128480

約数和(自身を除く): 355920496

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 89, 112, 178, 356, 623, 712, 1246, 1424, 2492, 4984, 9968, 28813, 57626, 115252, 201691, 230504, 403382, 461008, 806764, 1613528, 2564357, 3227056, 5128714, 10257428, 17950499, 20514856, 35900998, 41029712, 71801996, 143603992, 287207984]

約数ペア:

[(1, 287207984), (2, 143603992), (4, 71801996), (7, 41029712), (8, 35900998), (14, 20514856), (16, 17950499), (28, 10257428), (56, 5128714), (89, 3227056), (112, 2564357), (178, 1613528), (356, 806764), (623, 461008), (712, 403382), (1246, 230504), (1424, 201691), (2492, 115252), (4984, 57626), (9968, 28813)]