640772912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{127}}^2\times {\mathrm{191}}^1$

素因数の和:466

約数の個数: 60

約数和(自身を含む): 1354663296

約数和(自身を除く): 713890384

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 127, 191, 208, 254, 382, 508, 764, 1016, 1528, 1651, 2032, 2483, 3056, 3302, 4966, 6604, 9932, 13208, 16129, 19864, 24257, 26416, 32258, 39728, 48514, 64516, 97028, 129032, 194056, 209677, 258064, 315341, 388112, 419354, 630682, 838708, 1261364, 1677416, 2522728, 3080639, 3354832, 5045456, 6161278, 12322556, 24645112, 40048307, 49290224, 80096614, 160193228, 320386456, 640772912]

約数ペア:

[(1, 640772912), (2, 320386456), (4, 160193228), (8, 80096614), (13, 49290224), (16, 40048307), (26, 24645112), (52, 12322556), (104, 6161278), (127, 5045456), (191, 3354832), (208, 3080639), (254, 2522728), (382, 1677416), (508, 1261364), (764, 838708), (1016, 630682), (1528, 419354), (1651, 388112), (2032, 315341), (2483, 258064), (3056, 209677), (3302, 194056), (4966, 129032), (6604, 97028), (9932, 64516), (13208, 48514), (16129, 39728), (19864, 32258), (24257, 26416)]