212740480

素因数分解:

$2^7\times 5^1\times {\mathrm{491}}^1\times {\mathrm{677}}^1$

素因数の和:1187

約数の個数: 64

約数和(自身を含む): 510371280

約数和(自身を除く): 297630800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 491, 640, 677, 982, 1354, 1964, 2455, 2708, 3385, 3928, 4910, 5416, 6770, 7856, 9820, 10832, 13540, 15712, 19640, 21664, 27080, 31424, 39280, 43328, 54160, 62848, 78560, 86656, 108320, 157120, 216640, 314240, 332407, 433280, 664814, 1329628, 1662035, 2659256, 3324070, 5318512, 6648140, 10637024, 13296280, 21274048, 26592560, 42548096, 53185120, 106370240, 212740480]

約数ペア:

[(1, 212740480), (2, 106370240), (4, 53185120), (5, 42548096), (8, 26592560), (10, 21274048), (16, 13296280), (20, 10637024), (32, 6648140), (40, 5318512), (64, 3324070), (80, 2659256), (128, 1662035), (160, 1329628), (320, 664814), (491, 433280), (640, 332407), (677, 314240), (982, 216640), (1354, 157120), (1964, 108320), (2455, 86656), (2708, 78560), (3385, 62848), (3928, 54160), (4910, 43328), (5416, 39280), (6770, 31424), (7856, 27080), (9820, 21664), (10832, 19640), (13540, 15712)]