21682240

素因数分解:

$2^6\times 5^1\times {\mathrm{67757}}^1$

素因数の和:67774

約数の個数: 28

約数和(自身を含む): 51631596

約数和(自身を除く): 29949356

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 67757, 135514, 271028, 338785, 542056, 677570, 1084112, 1355140, 2168224, 2710280, 4336448, 5420560, 10841120, 21682240]

約数ペア:

[(1, 21682240), (2, 10841120), (4, 5420560), (5, 4336448), (8, 2710280), (10, 2168224), (16, 1355140), (20, 1084112), (32, 677570), (40, 542056), (64, 338785), (80, 271028), (160, 135514), (320, 67757)]