28981120

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{6469}}^1$

素因数の和:6495

約数の個数: 64

約数和(自身を含む): 79192800

約数和(自身を除く): 50211680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 6469, 12938, 25876, 32345, 45283, 51752, 64690, 90566, 103504, 129380, 181132, 207008, 226415, 258760, 362264, 414016, 452830, 517520, 724528, 828032, 905660, 1035040, 1449056, 1811320, 2070080, 2898112, 3622640, 4140160, 5796224, 7245280, 14490560, 28981120]

約数ペア:

[(1, 28981120), (2, 14490560), (4, 7245280), (5, 5796224), (7, 4140160), (8, 3622640), (10, 2898112), (14, 2070080), (16, 1811320), (20, 1449056), (28, 1035040), (32, 905660), (35, 828032), (40, 724528), (56, 517520), (64, 452830), (70, 414016), (80, 362264), (112, 258760), (128, 226415), (140, 207008), (160, 181132), (224, 129380), (280, 103504), (320, 90566), (448, 64690), (560, 51752), (640, 45283), (896, 32345), (1120, 25876), (2240, 12938), (4480, 6469)]