64084640

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9769}}^1$

素因数の和:9825

約数の個数: 48

約数和(自身を含む): 155108520

約数和(自身を除く): 91023880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 9769, 19538, 39076, 48845, 78152, 97690, 156304, 195380, 312608, 390760, 400529, 781520, 801058, 1563040, 1602116, 2002645, 3204232, 4005290, 6408464, 8010580, 12816928, 16021160, 32042320, 64084640]

約数ペア:

[(1, 64084640), (2, 32042320), (4, 16021160), (5, 12816928), (8, 8010580), (10, 6408464), (16, 4005290), (20, 3204232), (32, 2002645), (40, 1602116), (41, 1563040), (80, 801058), (82, 781520), (160, 400529), (164, 390760), (205, 312608), (328, 195380), (410, 156304), (656, 97690), (820, 78152), (1312, 48845), (1640, 39076), (3280, 19538), (6560, 9769)]