320428480

素因数分解:

$2^6\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11251}}^1$

素因数の和:11357

約数の個数: 56

約数和(自身を含む): 771662160

約数和(自身を除く): 451233680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 160, 178, 320, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 5696, 7120, 11251, 14240, 22502, 28480, 45004, 56255, 90008, 112510, 180016, 225020, 360032, 450040, 720064, 900080, 1001339, 1800160, 2002678, 3600320, 4005356, 5006695, 8010712, 10013390, 16021424, 20026780, 32042848, 40053560, 64085696, 80107120, 160214240, 320428480]

約数ペア:

[(1, 320428480), (2, 160214240), (4, 80107120), (5, 64085696), (8, 40053560), (10, 32042848), (16, 20026780), (20, 16021424), (32, 10013390), (40, 8010712), (64, 5006695), (80, 4005356), (89, 3600320), (160, 2002678), (178, 1800160), (320, 1001339), (356, 900080), (445, 720064), (712, 450040), (890, 360032), (1424, 225020), (1780, 180016), (2848, 112510), (3560, 90008), (5696, 56255), (7120, 45004), (11251, 28480), (14240, 22502)]