221656960

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{49477}}^1$

素因数の和:49503

約数の個数: 64

約数和(自身を含む): 605610720

約数和(自身を除く): 383953760

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, 49477, 98954, 197908, 247385, 346339, 395816, 494770, 692678, 791632, 989540, 1385356, 1583264, 1731695, 1979080, 2770712, 3166528, 3463390, 3958160, 5541424, 6333056, 6926780, 7916320, 11082848, 13853560, 15832640, 22165696, 27707120, 31665280, 44331392, 55414240, 110828480, 221656960]

約数ペア:

[(1, 221656960), (2, 110828480), (4, 55414240), (5, 44331392), (7, 31665280), (8, 27707120), (10, 22165696), (14, 15832640), (16, 13853560), (20, 11082848), (28, 7916320), (32, 6926780), (35, 6333056), (40, 5541424), (56, 3958160), (64, 3463390), (70, 3166528), (80, 2770712), (112, 1979080), (128, 1731695), (140, 1583264), (160, 1385356), (224, 989540), (280, 791632), (320, 692678), (448, 494770), (560, 395816), (640, 346339), (896, 247385), (1120, 197908), (2240, 98954), (4480, 49477)]