21990720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{22907}}^1$

素因数の和:22927

約数の個数: 56

約数和(自身を含む): 69823584

約数和(自身を除く): 47832864

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 22907, 45814, 68721, 91628, 114535, 137442, 183256, 229070, 274884, 343605, 366512, 458140, 549768, 687210, 733024, 916280, 1099536, 1374420, 1466048, 1832560, 2199072, 2748840, 3665120, 4398144, 5497680, 7330240, 10995360, 21990720]

約数ペア:

[(1, 21990720), (2, 10995360), (3, 7330240), (4, 5497680), (5, 4398144), (6, 3665120), (8, 2748840), (10, 2199072), (12, 1832560), (15, 1466048), (16, 1374420), (20, 1099536), (24, 916280), (30, 733024), (32, 687210), (40, 549768), (48, 458140), (60, 366512), (64, 343605), (80, 274884), (96, 229070), (120, 183256), (160, 137442), (192, 114535), (240, 91628), (320, 68721), (480, 45814), (960, 22907)]